---
_id: '14845'
abstract:
- lang: eng
text: We study a linear rotor in a bosonic bath within the angulon formalism. Our
focus is on systems where isotropic or anisotropic impurity-boson interactions
support a shallow bound state. To study the fate of the angulon in the vicinity
of bound-state formation, we formulate a beyond-linear-coupling angulon Hamiltonian.
First, we use it to study attractive, spherically symmetric impurity-boson interactions
for which the linear rotor can be mapped onto a static impurity. The well-known
polaron formalism provides an adequate description in this limit. Second, we consider
anisotropic potentials, and show that the presence of a shallow bound state with
pronounced anisotropic character leads to a many-body instability that washes
out the angulon dynamics.
acknowledgement: "We would like to thank G. Bighin, I. Cherepanov, E. Paerschke, and
E. Yakaboylu for insightful discussions on a wide range of topics. This work has
been supported by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). A.G. and A.G.V. acknowledge support from the European Union’s Horizon
2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie Grant Agreement
No. 754411. Numerical calculations were performed on the Euler cluster managed by
the HPC team at ETH Zurich.\r\nR.S. acknowledges support by the Deutsche Forschungsgemeinschaft
under Germany’s Excellence Strategy Grant No. EXC 2181/1-390900948 (the Heidelberg
STRUCTURES Excellence Cluster). T.D. acknowledges support from the Isaac Newton
Studentship and the Science and Technology Facilities Council under Grant No. ST/V50659X/1."
article_number: '014102'
article_processing_charge: No
article_type: original
author:
- first_name: Tibor
full_name: Dome, Tibor
id: 7e3293e2-b9dc-11ee-97a9-cd73400f6994
last_name: Dome
orcid: 0000-0003-2586-3702
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Laleh
full_name: Safari, Laleh
id: 3C325E5E-F248-11E8-B48F-1D18A9856A87
last_name: Safari
- first_name: Richard
full_name: Schmidt, Richard
last_name: Schmidt
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. Linear rotor
in an ideal Bose gas near the threshold for binding. Physical Review B.
2024;109(1). doi:10.1103/PhysRevB.109.014102
apa: Dome, T., Volosniev, A., Ghazaryan, A., Safari, L., Schmidt, R., & Lemeshko,
M. (2024). Linear rotor in an ideal Bose gas near the threshold for binding. Physical
Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.109.014102
chicago: Dome, Tibor, Artem Volosniev, Areg Ghazaryan, Laleh Safari, Richard Schmidt,
and Mikhail Lemeshko. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.109.014102.
ieee: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, and M. Lemeshko,
“Linear rotor in an ideal Bose gas near the threshold for binding,” Physical
Review B, vol. 109, no. 1. American Physical Society, 2024.
ista: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. 2024. Linear
rotor in an ideal Bose gas near the threshold for binding. Physical Review B.
109(1), 014102.
mla: Dome, Tibor, et al. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B, vol. 109, no. 1, 014102, American Physical
Society, 2024, doi:10.1103/PhysRevB.109.014102.
short: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, M. Lemeshko,
Physical Review B 109 (2024).
date_created: 2024-01-21T23:00:57Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2024-01-23T10:51:09Z
day: '01'
department:
- _id: MiLe
doi: 10.1103/PhysRevB.109.014102
ec_funded: 1
intvolume: ' 109'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Linear rotor in an ideal Bose gas near the threshold for binding
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '15045'
abstract:
- lang: eng
text: Coupling of orbital motion to a spin degree of freedom gives rise to various
transport phenomena in quantum systems that are beyond the standard paradigms
of classical physics. Here, we discuss features of spin-orbit dynamics that can
be visualized using a classical model with two coupled angular degrees of freedom.
Specifically, we demonstrate classical ‘spin’ filtering through our model and
show that the interplay between angular degrees of freedom and dissipation can
lead to asymmetric ‘spin’ transport.
acknowledgement: "We thank Mikhail Lemeshko and members of his group for many inspiring
discussions; Alberto Cappellaro for comments on the manuscript.\r\nOpen access funding
provided by Institute of Science and Technology (IST Austria)."
article_number: '12'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Atul
full_name: Varshney, Atul
id: 2A2006B2-F248-11E8-B48F-1D18A9856A87
last_name: Varshney
orcid: 0000-0002-3072-5999
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Varshney A, Ghazaryan A, Volosniev A. Classical ‘spin’ filtering with two degrees
of freedom and dissipation. Few-Body Systems. 2024;65. doi:10.1007/s00601-024-01880-x
apa: Varshney, A., Ghazaryan, A., & Volosniev, A. (2024). Classical ‘spin’ filtering
with two degrees of freedom and dissipation. Few-Body Systems. Springer
Nature. https://doi.org/10.1007/s00601-024-01880-x
chicago: Varshney, Atul, Areg Ghazaryan, and Artem Volosniev. “Classical ‘Spin’
Filtering with Two Degrees of Freedom and Dissipation.” Few-Body Systems.
Springer Nature, 2024. https://doi.org/10.1007/s00601-024-01880-x.
ieee: A. Varshney, A. Ghazaryan, and A. Volosniev, “Classical ‘spin’ filtering with
two degrees of freedom and dissipation,” Few-Body Systems, vol. 65. Springer
Nature, 2024.
ista: Varshney A, Ghazaryan A, Volosniev A. 2024. Classical ‘spin’ filtering with
two degrees of freedom and dissipation. Few-Body Systems. 65, 12.
mla: Varshney, Atul, et al. “Classical ‘Spin’ Filtering with Two Degrees of Freedom
and Dissipation.” Few-Body Systems, vol. 65, 12, Springer Nature, 2024,
doi:10.1007/s00601-024-01880-x.
short: A. Varshney, A. Ghazaryan, A. Volosniev, Few-Body Systems 65 (2024).
date_created: 2024-03-01T11:39:33Z
date_published: 2024-02-17T00:00:00Z
date_updated: 2024-03-04T07:08:16Z
day: '17'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1007/s00601-024-01880-x
external_id:
arxiv:
- '2401.08454'
file:
- access_level: open_access
checksum: c4e08cc7bc756da69b1b36fda7bb92fb
content_type: application/pdf
creator: dernst
date_created: 2024-03-04T07:07:10Z
date_updated: 2024-03-04T07:07:10Z
file_id: '15049'
file_name: 2024_FewBodySys_Varshney.pdf
file_size: 436712
relation: main_file
success: 1
file_date_updated: 2024-03-04T07:07:10Z
has_accepted_license: '1'
intvolume: ' 65'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '02'
oa: 1
oa_version: Published Version
publication: Few-Body Systems
publication_identifier:
issn:
- 1432-5411
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Classical ‘spin’ filtering with two degrees of freedom and dissipation
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 65
year: '2024'
...
---
_id: '12534'
abstract:
- lang: eng
text: Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling
(SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose
and interpret quantum simulators of this problem in cold Bose gases. First, we
derive a master equation that describes the model and explore it in a one-dimensional
(1D) setting. To validate the standard assumptions needed for our derivation,
we analyze available experimental data without SOC; as a byproduct, this analysis
suggests that the quench dynamics of the impurity is beyond the 1D Bose-polaron
approach at temperatures currently accessible in a cold-atom laboratory—motion
of the impurity is mainly driven by dissipation. For systems with SOC, we demonstrate
that 1D spin-orbit coupling can be gauged out even in the presence of dissipation—the
information about SOC is incorporated in the initial conditions. Observables sensitive
to this information (such as spin densities) can be used to study formation of
steady spin polarization domains during quench dynamics.
acknowledgement: "We thank Rafael Barfknecht for help at the initial stages of this
project; Fabian Brauneis for useful discussions; Miguel A. Garcia-March, Georgios
Koutentakis, and Simeon Mistakidis\r\nfor comments on the paper. M.L. acknowledges
support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON)."
article_number: '013029'
article_processing_charge: No
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Alberto
full_name: Cappellaro, Alberto
id: 9d13b3cb-30a2-11eb-80dc-f772505e8660
last_name: Cappellaro
orcid: 0000-0001-6110-2359
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. Dissipative dynamics of
an impurity with spin-orbit coupling. Physical Review Research. 2023;5(1).
doi:10.1103/physrevresearch.5.013029
apa: Ghazaryan, A., Cappellaro, A., Lemeshko, M., & Volosniev, A. (2023). Dissipative
dynamics of an impurity with spin-orbit coupling. Physical Review Research.
American Physical Society. https://doi.org/10.1103/physrevresearch.5.013029
chicago: Ghazaryan, Areg, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev.
“Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” Physical Review
Research. American Physical Society, 2023. https://doi.org/10.1103/physrevresearch.5.013029.
ieee: A. Ghazaryan, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Dissipative dynamics
of an impurity with spin-orbit coupling,” Physical Review Research, vol.
5, no. 1. American Physical Society, 2023.
ista: Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. 2023. Dissipative dynamics
of an impurity with spin-orbit coupling. Physical Review Research. 5(1), 013029.
mla: Ghazaryan, Areg, et al. “Dissipative Dynamics of an Impurity with Spin-Orbit
Coupling.” Physical Review Research, vol. 5, no. 1, 013029, American Physical
Society, 2023, doi:10.1103/physrevresearch.5.013029.
short: A. Ghazaryan, A. Cappellaro, M. Lemeshko, A. Volosniev, Physical Review Research
5 (2023).
date_created: 2023-02-10T09:02:26Z
date_published: 2023-01-20T00:00:00Z
date_updated: 2023-02-20T07:02:00Z
day: '20'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/physrevresearch.5.013029
ec_funded: 1
file:
- access_level: open_access
checksum: 6068b62874c0099628a108bb9c5c6bd2
content_type: application/pdf
creator: dernst
date_created: 2023-02-13T10:38:10Z
date_updated: 2023-02-13T10:38:10Z
file_id: '12546'
file_name: 2023_PhysicalReviewResearch_Ghazaryan.pdf
file_size: 865150
relation: main_file
success: 1
file_date_updated: 2023-02-13T10:38:10Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dissipative dynamics of an impurity with spin-orbit coupling
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2023'
...
---
_id: '12788'
abstract:
- lang: eng
text: We show that the simplest of existing molecules—closed-shell diatomics not
interacting with one another—host topological charges when driven by periodic
far-off-resonant laser pulses. A periodically kicked molecular rotor can be mapped
onto a “crystalline” lattice in angular momentum space. This allows us to define
quasimomenta and the band structure in the Floquet representation, by analogy
with the Bloch waves of solid-state physics. Applying laser pulses spaced by 1/3
of the molecular rotational period creates a lattice with three atoms per unit
cell with staggered hopping. Within the synthetic dimension of the laser strength,
we discover Dirac cones with topological charges. These Dirac cones, topologically
protected by reflection and time-reversal symmetry, are reminiscent of (although
not equivalent to) that seen in graphene. They—and the corresponding edge states—are
broadly tunable by adjusting the laser strength and can be observed in present-day
experiments by measuring molecular alignment and populations of rotational levels.
This paves the way to study controllable topological physics in gas-phase experiments
with small molecules as well as to classify dynamical molecular states by their
topological invariants.
acknowledgement: M. L. acknowledges support by the European Research Council (ERC)
Starting Grant No. 801770 (ANGULON).
article_number: '103202'
article_processing_charge: No
article_type: original
author:
- first_name: Volker
full_name: Karle, Volker
id: D7C012AE-D7ED-11E9-95E8-1EC5E5697425
last_name: Karle
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Karle V, Ghazaryan A, Lemeshko M. Topological charges of periodically kicked
molecules. Physical Review Letters. 2023;130(10). doi:10.1103/PhysRevLett.130.103202
apa: Karle, V., Ghazaryan, A., & Lemeshko, M. (2023). Topological charges of
periodically kicked molecules. Physical Review Letters. American Physical
Society. https://doi.org/10.1103/PhysRevLett.130.103202
chicago: Karle, Volker, Areg Ghazaryan, and Mikhail Lemeshko. “Topological Charges
of Periodically Kicked Molecules.” Physical Review Letters. American Physical
Society, 2023. https://doi.org/10.1103/PhysRevLett.130.103202.
ieee: V. Karle, A. Ghazaryan, and M. Lemeshko, “Topological charges of periodically
kicked molecules,” Physical Review Letters, vol. 130, no. 10. American
Physical Society, 2023.
ista: Karle V, Ghazaryan A, Lemeshko M. 2023. Topological charges of periodically
kicked molecules. Physical Review Letters. 130(10), 103202.
mla: Karle, Volker, et al. “Topological Charges of Periodically Kicked Molecules.”
Physical Review Letters, vol. 130, no. 10, 103202, American Physical Society,
2023, doi:10.1103/PhysRevLett.130.103202.
short: V. Karle, A. Ghazaryan, M. Lemeshko, Physical Review Letters 130 (2023).
date_created: 2023-04-02T22:01:10Z
date_published: 2023-03-10T00:00:00Z
date_updated: 2023-08-01T14:02:06Z
day: '10'
department:
- _id: MiLe
doi: 10.1103/PhysRevLett.130.103202
ec_funded: 1
external_id:
arxiv:
- '2206.07067'
isi:
- '000957635500003'
intvolume: ' 130'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2206.07067
month: '03'
oa: 1
oa_version: Preprint
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on the ISTA website
relation: press_release
url: https://ista.ac.at/en/news/topology-of-rotating-molecules/
scopus_import: '1'
status: public
title: Topological charges of periodically kicked molecules
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 130
year: '2023'
...
---
_id: '12790'
abstract:
- lang: eng
text: Motivated by the recent discoveries of superconductivity in bilayer and trilayer
graphene, we theoretically investigate superconductivity and other interaction-driven
phases in multilayer graphene stacks. To this end, we study the density of states
of multilayer graphene with up to four layers at the single-particle band structure
level in the presence of a transverse electric field. Among the considered structures,
tetralayer graphene with rhombohedral (ABCA) stacking reaches the highest density
of states. We study the phases that can arise in ABCA graphene by tuning the carrier
density and transverse electric field. For a broad region of the tuning parameters,
the presence of strong Coulomb repulsion leads to a spontaneous spin and valley
symmetry breaking via Stoner transitions. Using a model that incorporates the
spontaneous spin and valley polarization, we explore the Kohn-Luttinger mechanism
for superconductivity driven by repulsive Coulomb interactions. We find that the
strongest superconducting instability is in the p-wave channel, and occurs in
proximity to the onset of Stoner transitions. Interestingly, we find a range of
densities and transverse electric fields where superconductivity develops out
of a strongly corrugated, singly connected Fermi surface in each valley, leading
to a topologically nontrivial chiral p+ip superconducting state with an even number
of copropagating chiral Majorana edge modes. Our work establishes ABCA-stacked
tetralayer graphene as a promising platform for observing strongly correlated
physics and topological superconductivity.
acknowledgement: E.B. and T.H. were supported by the European Research Council (ERC)
under grant HQMAT (Grant Agreement No. 817799), by the Israel-USA Binational Science
Foundation (BSF), and by a Research grant from Irving and Cherna Moskowitz.
article_number: '104502'
article_processing_charge: No
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: Ghazaryan A, Holder T, Berg E, Serbyn M. Multilayer graphenes as a platform
for interaction-driven physics and topological superconductivity. Physical
Review B. 2023;107(10). doi:10.1103/PhysRevB.107.104502
apa: Ghazaryan, A., Holder, T., Berg, E., & Serbyn, M. (2023). Multilayer graphenes
as a platform for interaction-driven physics and topological superconductivity.
Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.107.104502
chicago: Ghazaryan, Areg, Tobias Holder, Erez Berg, and Maksym Serbyn. “Multilayer
Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.”
Physical Review B. American Physical Society, 2023. https://doi.org/10.1103/PhysRevB.107.104502.
ieee: A. Ghazaryan, T. Holder, E. Berg, and M. Serbyn, “Multilayer graphenes as
a platform for interaction-driven physics and topological superconductivity,”
Physical Review B, vol. 107, no. 10. American Physical Society, 2023.
ista: Ghazaryan A, Holder T, Berg E, Serbyn M. 2023. Multilayer graphenes as a platform
for interaction-driven physics and topological superconductivity. Physical Review
B. 107(10), 104502.
mla: Ghazaryan, Areg, et al. “Multilayer Graphenes as a Platform for Interaction-Driven
Physics and Topological Superconductivity.” Physical Review B, vol. 107,
no. 10, 104502, American Physical Society, 2023, doi:10.1103/PhysRevB.107.104502.
short: A. Ghazaryan, T. Holder, E. Berg, M. Serbyn, Physical Review B 107 (2023).
date_created: 2023-04-02T22:01:10Z
date_published: 2023-03-01T00:00:00Z
date_updated: 2023-08-01T13:59:29Z
day: '01'
department:
- _id: MaSe
- _id: MiLe
doi: 10.1103/PhysRevB.107.104502
external_id:
arxiv:
- '2211.02492'
isi:
- '000945526400003'
intvolume: ' 107'
isi: 1
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2211.02492
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on the ISTA website
relation: press_release
url: https://ista.ac.at/en/news/reaching-superconductivity-layer-by-layer/
scopus_import: '1'
status: public
title: Multilayer graphenes as a platform for interaction-driven physics and topological
superconductivity
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 107
year: '2023'
...
---
_id: '14320'
abstract:
- lang: eng
text: The development of two-dimensional materials has resulted in a diverse range
of novel, high-quality compounds with increasing complexity. A key requirement
for a comprehensive quantitative theory is the accurate determination of these
materials' band structure parameters. However, this task is challenging due to
the intricate band structures and the indirect nature of experimental probes.
In this work, we introduce a general framework to derive band structure parameters
from experimental data using deep neural networks. We applied our method to the
penetration field capacitance measurement of trilayer graphene, an effective probe
of its density of states. First, we demonstrate that a trained deep network gives
accurate predictions for the penetration field capacitance as a function of tight-binding
parameters. Next, we use the fast and accurate predictions from the trained network
to automatically determine tight-binding parameters directly from experimental
data, with extracted parameters being in a good agreement with values in the literature.
We conclude by discussing potential applications of our method to other materials
and experimental techniques beyond penetration field capacitance.
acknowledgement: A.F.Y. acknowledges primary support from the Department of Energy
under award DE-SC0020043, and additional support from the Gordon and Betty Moore
Foundation under award GBMF9471 for group operations.
article_number: '125411'
article_processing_charge: No
article_type: original
author:
- first_name: Paul M
full_name: Henderson, Paul M
id: 13C09E74-18D9-11E9-8878-32CFE5697425
last_name: Henderson
orcid: 0000-0002-5198-7445
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Alexander A.
full_name: Zibrov, Alexander A.
last_name: Zibrov
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
citation:
ama: 'Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. Deep learning extraction
of band structure parameters from density of states: A case study on trilayer
graphene. Physical Review B. 2023;108(12). doi:10.1103/physrevb.108.125411'
apa: 'Henderson, P. M., Ghazaryan, A., Zibrov, A. A., Young, A. F., & Serbyn,
M. (2023). Deep learning extraction of band structure parameters from density
of states: A case study on trilayer graphene. Physical Review B. American
Physical Society. https://doi.org/10.1103/physrevb.108.125411'
chicago: 'Henderson, Paul M, Areg Ghazaryan, Alexander A. Zibrov, Andrea F. Young,
and Maksym Serbyn. “Deep Learning Extraction of Band Structure Parameters from
Density of States: A Case Study on Trilayer Graphene.” Physical Review B.
American Physical Society, 2023. https://doi.org/10.1103/physrevb.108.125411.'
ieee: 'P. M. Henderson, A. Ghazaryan, A. A. Zibrov, A. F. Young, and M. Serbyn,
“Deep learning extraction of band structure parameters from density of states:
A case study on trilayer graphene,” Physical Review B, vol. 108, no. 12.
American Physical Society, 2023.'
ista: 'Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. 2023. Deep learning
extraction of band structure parameters from density of states: A case study on
trilayer graphene. Physical Review B. 108(12), 125411.'
mla: 'Henderson, Paul M., et al. “Deep Learning Extraction of Band Structure Parameters
from Density of States: A Case Study on Trilayer Graphene.” Physical Review
B, vol. 108, no. 12, 125411, American Physical Society, 2023, doi:10.1103/physrevb.108.125411.'
short: P.M. Henderson, A. Ghazaryan, A.A. Zibrov, A.F. Young, M. Serbyn, Physical
Review B 108 (2023).
date_created: 2023-09-12T07:12:12Z
date_published: 2023-09-15T00:00:00Z
date_updated: 2023-09-20T09:38:24Z
day: '15'
department:
- _id: MaSe
- _id: ChLa
- _id: MiLe
doi: 10.1103/physrevb.108.125411
external_id:
arxiv:
- '2210.06310'
intvolume: ' 108'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2210.06310
month: '09'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Deep learning extraction of band structure parameters from density of states:
A case study on trilayer graphene'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 108
year: '2023'
...
---
_id: '12836'
abstract:
- lang: eng
text: Coherent control and manipulation of quantum degrees of freedom such as spins
forms the basis of emerging quantum technologies. In this context, the robust
valley degree of freedom and the associated valley pseudospin found in two-dimensional
transition metal dichalcogenides is a highly attractive platform. Valley polarization
and coherent superposition of valley states have been observed in these systems
even up to room temperature. Control of valley coherence is an important building
block for the implementation of valley qubit. Large magnetic fields or high-power
lasers have been used in the past to demonstrate the control (initialization and
rotation) of the valley coherent states. Here, the control of layer–valley coherence
via strong coupling of valley excitons in bilayer WS2 to microcavity photons is
demonstrated by exploiting the pseudomagnetic field arising in optical cavities
owing to the transverse electric–transverse magnetic (TE–TM)mode splitting. The
use of photonic structures to generate pseudomagnetic fields which can be used
to manipulate exciton-polaritons presents an attractive approach to control optical
responses without the need for large magnets or high-intensity optical pump powers.
acknowledgement: The authors acknowledge insightful discussions with Prof. Wang Yao
and graphics by Rezlind Bushati. M.K. and N.Y. acknowledge support from NSF grants
NSF DMR-1709996 and NSF OMA 1936276. S.G. was supported by the Army Research Office
Multidisciplinary University Research Initiative program (W911NF-17-1-0312) and
V.M.M. by the Army Research Office grant (W911NF-22-1-0091). K.M acknowledges the
SPARC program that supported his collaboration with the CUNY team. The authors acknowledge
the Nanofabrication facility at the CUNY Advanced Science Research Center where
the cavity devices were fabricated.
article_number: '2202631'
article_processing_charge: No
article_type: original
author:
- first_name: Mandeep
full_name: Khatoniar, Mandeep
last_name: Khatoniar
- first_name: Nicholas
full_name: Yama, Nicholas
last_name: Yama
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Sriram
full_name: Guddala, Sriram
last_name: Guddala
- first_name: Pouyan
full_name: Ghaemi, Pouyan
last_name: Ghaemi
- first_name: Kausik
full_name: Majumdar, Kausik
last_name: Majumdar
- first_name: Vinod
full_name: Menon, Vinod
last_name: Menon
citation:
ama: Khatoniar M, Yama N, Ghazaryan A, et al. Optical manipulation of Layer–Valley
coherence via strong exciton–photon coupling in microcavities. Advanced Optical
Materials. 2023;11(13). doi:10.1002/adom.202202631
apa: Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., Majumdar,
K., & Menon, V. (2023). Optical manipulation of Layer–Valley coherence via
strong exciton–photon coupling in microcavities. Advanced Optical Materials.
Wiley. https://doi.org/10.1002/adom.202202631
chicago: Khatoniar, Mandeep, Nicholas Yama, Areg Ghazaryan, Sriram Guddala, Pouyan
Ghaemi, Kausik Majumdar, and Vinod Menon. “Optical Manipulation of Layer–Valley
Coherence via Strong Exciton–Photon Coupling in Microcavities.” Advanced Optical
Materials. Wiley, 2023. https://doi.org/10.1002/adom.202202631.
ieee: M. Khatoniar et al., “Optical manipulation of Layer–Valley coherence
via strong exciton–photon coupling in microcavities,” Advanced Optical Materials,
vol. 11, no. 13. Wiley, 2023.
ista: Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Majumdar K, Menon V.
2023. Optical manipulation of Layer–Valley coherence via strong exciton–photon
coupling in microcavities. Advanced Optical Materials. 11(13), 2202631.
mla: Khatoniar, Mandeep, et al. “Optical Manipulation of Layer–Valley Coherence
via Strong Exciton–Photon Coupling in Microcavities.” Advanced Optical Materials,
vol. 11, no. 13, 2202631, Wiley, 2023, doi:10.1002/adom.202202631.
short: M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, K. Majumdar,
V. Menon, Advanced Optical Materials 11 (2023).
date_created: 2023-04-16T22:01:09Z
date_published: 2023-07-04T00:00:00Z
date_updated: 2023-10-04T11:15:17Z
day: '04'
department:
- _id: MiLe
doi: 10.1002/adom.202202631
external_id:
arxiv:
- '2211.08755'
isi:
- '000963866700001'
intvolume: ' 11'
isi: 1
issue: '13'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2211.08755
month: '07'
oa: 1
oa_version: Preprint
publication: Advanced Optical Materials
publication_identifier:
eissn:
- 2195-1071
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling
in microcavities
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2023'
...
---
_id: '14037'
abstract:
- lang: eng
text: 'Traditionally, nuclear spin is not considered to affect biological processes.
Recently, this has changed as isotopic fractionation that deviates from classical
mass dependence was reported both in vitro and in vivo. In these cases, the isotopic
effect correlates with the nuclear magnetic spin. Here, we show nuclear spin effects
using stable oxygen isotopes (16O, 17O, and 18O) in two separate setups: an artificial
dioxygen production system and biological aquaporin channels in cells. We observe
that oxygen dynamics in chiral environments (in particular its transport) depend
on nuclear spin, suggesting future applications for controlled isotope separation
to be used, for instance, in NMR. To demonstrate the mechanism behind our findings,
we formulate theoretical models based on a nuclear-spin-enhanced switch between
electronic spin states. Accounting for the role of nuclear spin in biology can
provide insights into the role of quantum effects in living systems and help inspire
the development of future biotechnology solutions.'
acknowledgement: N.M.-S. acknowledges the support of the Ministry of Energy, Israel,
as part of the scholarship program for graduate students in the fields of energy.
M.L. acknowledges support by the European Research Council (ERC) Starting Grant
No. 801770 (ANGULON). Y.P. acknowledges the support of the Ministry of Innovation,
Science and Technology, Israel Grant No. 1001593872. Y.P acknowledges the support
of the BSF-NSF 094 Grant No. 2022503.
article_number: e2300828120
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ofek
full_name: Vardi, Ofek
last_name: Vardi
- first_name: Naama
full_name: Maroudas-Sklare, Naama
last_name: Maroudas-Sklare
- first_name: Yuval
full_name: Kolodny, Yuval
last_name: Kolodny
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Amijai
full_name: Saragovi, Amijai
last_name: Saragovi
- first_name: Nir
full_name: Galili, Nir
last_name: Galili
- first_name: Stav
full_name: Ferrera, Stav
last_name: Ferrera
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Nir
full_name: Yuran, Nir
last_name: Yuran
- first_name: Hagit P.
full_name: Affek, Hagit P.
last_name: Affek
- first_name: Boaz
full_name: Luz, Boaz
last_name: Luz
- first_name: Yonaton
full_name: Goldsmith, Yonaton
last_name: Goldsmith
- first_name: Nir
full_name: Keren, Nir
last_name: Keren
- first_name: Shira
full_name: Yochelis, Shira
last_name: Yochelis
- first_name: Itay
full_name: Halevy, Itay
last_name: Halevy
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Yossi
full_name: Paltiel, Yossi
last_name: Paltiel
citation:
ama: Vardi O, Maroudas-Sklare N, Kolodny Y, et al. Nuclear spin effects in biological
processes. Proceedings of the National Academy of Sciences of the United States
of America. 2023;120(32). doi:10.1073/pnas.2300828120
apa: Vardi, O., Maroudas-Sklare, N., Kolodny, Y., Volosniev, A., Saragovi, A., Galili,
N., … Paltiel, Y. (2023). Nuclear spin effects in biological processes. Proceedings
of the National Academy of Sciences of the United States of America. National
Academy of Sciences. https://doi.org/10.1073/pnas.2300828120
chicago: Vardi, Ofek, Naama Maroudas-Sklare, Yuval Kolodny, Artem Volosniev, Amijai
Saragovi, Nir Galili, Stav Ferrera, et al. “Nuclear Spin Effects in Biological
Processes.” Proceedings of the National Academy of Sciences of the United States
of America. National Academy of Sciences, 2023. https://doi.org/10.1073/pnas.2300828120.
ieee: O. Vardi et al., “Nuclear spin effects in biological processes,” Proceedings
of the National Academy of Sciences of the United States of America, vol.
120, no. 32. National Academy of Sciences, 2023.
ista: Vardi O, Maroudas-Sklare N, Kolodny Y, Volosniev A, Saragovi A, Galili N,
Ferrera S, Ghazaryan A, Yuran N, Affek HP, Luz B, Goldsmith Y, Keren N, Yochelis
S, Halevy I, Lemeshko M, Paltiel Y. 2023. Nuclear spin effects in biological processes.
Proceedings of the National Academy of Sciences of the United States of America.
120(32), e2300828120.
mla: Vardi, Ofek, et al. “Nuclear Spin Effects in Biological Processes.” Proceedings
of the National Academy of Sciences of the United States of America, vol.
120, no. 32, e2300828120, National Academy of Sciences, 2023, doi:10.1073/pnas.2300828120.
short: O. Vardi, N. Maroudas-Sklare, Y. Kolodny, A. Volosniev, A. Saragovi, N. Galili,
S. Ferrera, A. Ghazaryan, N. Yuran, H.P. Affek, B. Luz, Y. Goldsmith, N. Keren,
S. Yochelis, I. Halevy, M. Lemeshko, Y. Paltiel, Proceedings of the National Academy
of Sciences of the United States of America 120 (2023).
date_created: 2023-08-13T22:01:12Z
date_published: 2023-07-31T00:00:00Z
date_updated: 2023-10-17T11:45:25Z
day: '31'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1073/pnas.2300828120
ec_funded: 1
external_id:
pmid:
- '37523549'
file:
- access_level: open_access
checksum: a5ed64788a5acef9b9a300a26fa5a177
content_type: application/pdf
creator: dernst
date_created: 2023-08-14T07:43:45Z
date_updated: 2023-08-14T07:43:45Z
file_id: '14047'
file_name: 2023_PNAS_Vardi.pdf
file_size: 1003092
relation: main_file
success: 1
file_date_updated: 2023-08-14T07:43:45Z
has_accepted_license: '1'
intvolume: ' 120'
issue: '32'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nuclear spin effects in biological processes
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 120
year: '2023'
...
---
_id: '14486'
abstract:
- lang: eng
text: We present a minimal model of ferroelectric large polarons, which are suggested
as one of the mechanisms responsible for the unique charge transport properties
of hybrid perovskites. We demonstrate that short-ranged charge–rotor interactions
lead to long-range ferroelectric ordering of rotors, which strongly affects the
carrier mobility. In the nonperturbative regime, where our theory cannot be reduced
to any of the earlier models, we reveal that the polaron is characterized by large
coherence length and a roughly tenfold increase of the effective mass as compared
to the bare mass. These results are in good agreement with other theoretical predictions
for ferroelectric polarons. Our model establishes a general phenomenological framework
for ferroelectric polarons providing the starting point for future studies of
their role in the transport properties of hybrid organic-inorganic perovskites.
acknowledgement: We thank Zh. Alpichshev, A. Volosniev, and A. V. Zampetaki for fruitful
discussions and comments. This project received funding from the European Union’s
Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie
Grant Agreement No. 101034413. M.L. acknowledges support by the European Research
Council (ERC) Starting Grant No. 801770 (ANGULON).
article_number: '043016'
article_processing_charge: Yes
article_type: original
author:
- first_name: Georgios
full_name: Koutentakis, Georgios
id: d7b23d3a-9e21-11ec-b482-f76739596b95
last_name: Koutentakis
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Koutentakis G, Ghazaryan A, Lemeshko M. Rotor lattice model of ferroelectric
large polarons. Physical Review Research. 2023;5(4). doi:10.1103/PhysRevResearch.5.043016
apa: Koutentakis, G., Ghazaryan, A., & Lemeshko, M. (2023). Rotor lattice model
of ferroelectric large polarons. Physical Review Research. American Physical
Society. https://doi.org/10.1103/PhysRevResearch.5.043016
chicago: Koutentakis, Georgios, Areg Ghazaryan, and Mikhail Lemeshko. “Rotor Lattice
Model of Ferroelectric Large Polarons.” Physical Review Research. American
Physical Society, 2023. https://doi.org/10.1103/PhysRevResearch.5.043016.
ieee: G. Koutentakis, A. Ghazaryan, and M. Lemeshko, “Rotor lattice model of ferroelectric
large polarons,” Physical Review Research, vol. 5, no. 4. American Physical
Society, 2023.
ista: Koutentakis G, Ghazaryan A, Lemeshko M. 2023. Rotor lattice model of ferroelectric
large polarons. Physical Review Research. 5(4), 043016.
mla: Koutentakis, Georgios, et al. “Rotor Lattice Model of Ferroelectric Large Polarons.”
Physical Review Research, vol. 5, no. 4, 043016, American Physical Society,
2023, doi:10.1103/PhysRevResearch.5.043016.
short: G. Koutentakis, A. Ghazaryan, M. Lemeshko, Physical Review Research 5 (2023).
date_created: 2023-11-05T23:00:53Z
date_published: 2023-10-05T00:00:00Z
date_updated: 2023-11-07T07:53:39Z
day: '05'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1103/PhysRevResearch.5.043016
ec_funded: 1
external_id:
arxiv:
- '2301.09875'
file:
- access_level: open_access
checksum: cb8de8fed6e09df1a18bd5a5aec5c55c
content_type: application/pdf
creator: dernst
date_created: 2023-11-07T07:52:46Z
date_updated: 2023-11-07T07:52:46Z
file_id: '14493'
file_name: 2023_PhysReviewResearch_Koutentakis.pdf
file_size: 1127522
relation: main_file
success: 1
file_date_updated: 2023-11-07T07:52:46Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '4'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Rotor lattice model of ferroelectric large polarons
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2023'
...
---
_id: '14246'
abstract:
- lang: eng
text: The model of a ring threaded by the Aharonov-Bohm flux underlies our understanding
of a coupling between gauge potentials and matter. The typical formulation of
the model is based upon a single particle picture, and should be extended when
interactions with other particles become relevant. Here, we illustrate such an
extension for a particle in an Aharonov-Bohm ring subject to interactions with
a weakly interacting Bose gas. We show that the ground state of the system can
be described using the Bose-polaron concept—a particle dressed by interactions
with a bosonic environment. We connect the energy spectrum to the effective mass
of the polaron, and demonstrate how to change currents in the system by tuning
boson-particle interactions. Our results suggest the Aharonov-Bohm ring as a platform
for studying coherence and few- to many-body crossover of quasi-particles that
arise from an impurity immersed in a medium.
acknowledgement: "Open Access funding enabled and organized by Projekt DEAL.\r\nWe
would like to thank Jonas Jager for sharing his data with us in the early stages
of this project. We thank Joachim Brand and Ray Yang for sharing with us data from
Yang et al.46. This work has received funding from the DFG Project no. 413495248
[VO 2437/1-1] (F.B., H.-W.H., A.G.V.). We acknowledge support from the Deutsche
Forschungsgemeinschaft (DFG - German Research Foundation) and the Open Access Publishing
Fund of the Technical University of Darmstadt."
article_number: '224'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Fabian
full_name: Brauneis, Fabian
last_name: Brauneis
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Hans-Werner
full_name: Hammer, Hans-Werner
last_name: Hammer
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. Emergence of a Bose polaron
in a small ring threaded by the Aharonov-Bohm flux. Communications Physics.
2023;6. doi:10.1038/s42005-023-01281-2
apa: Brauneis, F., Ghazaryan, A., Hammer, H.-W., & Volosniev, A. (2023). Emergence
of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. Communications
Physics. Springer Nature. https://doi.org/10.1038/s42005-023-01281-2
chicago: Brauneis, Fabian, Areg Ghazaryan, Hans-Werner Hammer, and Artem Volosniev.
“Emergence of a Bose Polaron in a Small Ring Threaded by the Aharonov-Bohm Flux.”
Communications Physics. Springer Nature, 2023. https://doi.org/10.1038/s42005-023-01281-2.
ieee: F. Brauneis, A. Ghazaryan, H.-W. Hammer, and A. Volosniev, “Emergence of a
Bose polaron in a small ring threaded by the Aharonov-Bohm flux,” Communications
Physics, vol. 6. Springer Nature, 2023.
ista: Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. 2023. Emergence of a Bose
polaron in a small ring threaded by the Aharonov-Bohm flux. Communications Physics.
6, 224.
mla: Brauneis, Fabian, et al. “Emergence of a Bose Polaron in a Small Ring Threaded
by the Aharonov-Bohm Flux.” Communications Physics, vol. 6, 224, Springer
Nature, 2023, doi:10.1038/s42005-023-01281-2.
short: F. Brauneis, A. Ghazaryan, H.-W. Hammer, A. Volosniev, Communications Physics
6 (2023).
date_created: 2023-08-28T12:36:49Z
date_published: 2023-08-22T00:00:00Z
date_updated: 2023-12-13T12:21:09Z
day: '22'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1038/s42005-023-01281-2
external_id:
arxiv:
- '2301.10488'
isi:
- '001052577500002'
file:
- access_level: open_access
checksum: 6edfc59b0ee7dc406d0968b05236e83d
content_type: application/pdf
creator: dernst
date_created: 2023-09-05T08:45:49Z
date_updated: 2023-09-05T08:45:49Z
file_id: '14268'
file_name: 2023_CommPhysics_Brauneis.pdf
file_size: 855960
relation: main_file
success: 1
file_date_updated: 2023-09-05T08:45:49Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
keyword:
- General Physics and Astronomy
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Communications Physics
publication_identifier:
issn:
- 2399-3650
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2023'
...
---
_id: '14238'
abstract:
- lang: eng
text: We demonstrate that a sodium dimer, Na2(13Σ+u), residing on the surface of
a helium nanodroplet, can be set into rotation by a nonresonant 1.0 ps infrared
laser pulse. The time-dependent degree of alignment measured, exhibits a periodic,
gradually decreasing structure that deviates qualitatively from that expected
for gas-phase dimers. Comparison to alignment dynamics calculated from the time-dependent
rotational Schrödinger equation shows that the deviation is due to the alignment
dependent interaction between the dimer and the droplet surface. This interaction
confines the dimer to the tangential plane of the droplet surface at the point
where it resides and is the reason that the observed alignment dynamics is also
well described by a 2D quantum rotor model.
acknowledgement: H. S. acknowledges support from The Villum Foundation through a Villum
Investigator Grant No. 25886. M. L. acknowledges support by the European Research
Council (ERC) Starting Grant No. 801770 (ANGULON). F. J. and R. E. Z. acknowledge
support from the Centre for Scientific Computing, Aarhus and the JKU scientific
computing administration, Linz, respectively.
article_number: '053201'
article_processing_charge: No
article_type: original
author:
- first_name: Lorenz
full_name: Kranabetter, Lorenz
last_name: Kranabetter
- first_name: Henrik H.
full_name: Kristensen, Henrik H.
last_name: Kristensen
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Constant A.
full_name: Schouder, Constant A.
last_name: Schouder
- first_name: Adam S.
full_name: Chatterley, Adam S.
last_name: Chatterley
- first_name: Paul
full_name: Janssen, Paul
last_name: Janssen
- first_name: Frank
full_name: Jensen, Frank
last_name: Jensen
- first_name: Robert E.
full_name: Zillich, Robert E.
last_name: Zillich
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Henrik
full_name: Stapelfeldt, Henrik
last_name: Stapelfeldt
citation:
ama: Kranabetter L, Kristensen HH, Ghazaryan A, et al. Nonadiabatic laser-induced
alignment dynamics of molecules on a surface. Physical Review Letters.
2023;131(5). doi:10.1103/PhysRevLett.131.053201
apa: Kranabetter, L., Kristensen, H. H., Ghazaryan, A., Schouder, C. A., Chatterley,
A. S., Janssen, P., … Stapelfeldt, H. (2023). Nonadiabatic laser-induced alignment
dynamics of molecules on a surface. Physical Review Letters. American Physical
Society. https://doi.org/10.1103/PhysRevLett.131.053201
chicago: Kranabetter, Lorenz, Henrik H. Kristensen, Areg Ghazaryan, Constant A.
Schouder, Adam S. Chatterley, Paul Janssen, Frank Jensen, Robert E. Zillich, Mikhail
Lemeshko, and Henrik Stapelfeldt. “Nonadiabatic Laser-Induced Alignment Dynamics
of Molecules on a Surface.” Physical Review Letters. American Physical
Society, 2023. https://doi.org/10.1103/PhysRevLett.131.053201.
ieee: L. Kranabetter et al., “Nonadiabatic laser-induced alignment dynamics
of molecules on a surface,” Physical Review Letters, vol. 131, no. 5. American
Physical Society, 2023.
ista: Kranabetter L, Kristensen HH, Ghazaryan A, Schouder CA, Chatterley AS, Janssen
P, Jensen F, Zillich RE, Lemeshko M, Stapelfeldt H. 2023. Nonadiabatic laser-induced
alignment dynamics of molecules on a surface. Physical Review Letters. 131(5),
053201.
mla: Kranabetter, Lorenz, et al. “Nonadiabatic Laser-Induced Alignment Dynamics
of Molecules on a Surface.” Physical Review Letters, vol. 131, no. 5, 053201,
American Physical Society, 2023, doi:10.1103/PhysRevLett.131.053201.
short: L. Kranabetter, H.H. Kristensen, A. Ghazaryan, C.A. Schouder, A.S. Chatterley,
P. Janssen, F. Jensen, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review
Letters 131 (2023).
date_created: 2023-08-27T22:01:16Z
date_published: 2023-08-04T00:00:00Z
date_updated: 2023-12-13T12:18:54Z
day: '04'
department:
- _id: MiLe
doi: 10.1103/PhysRevLett.131.053201
ec_funded: 1
external_id:
arxiv:
- '2308.15247'
isi:
- '001101784100001'
pmid:
- '37595218'
intvolume: ' 131'
isi: 1
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2308.15247
month: '08'
oa: 1
oa_version: Preprint
pmid: 1
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonadiabatic laser-induced alignment dynamics of molecules on a surface
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 131
year: '2023'
...
---
_id: '11379'
abstract:
- lang: eng
text: Bernal-stacked multilayer graphene is a versatile platform to explore quantum
transport phenomena and interaction physics due to its exceptional tunability
via electrostatic gating. For instance, upon applying a perpendicular electric
field, its band structure exhibits several off-center Dirac points (so-called
Dirac gullies) in each valley. Here, the formation of Dirac gullies and the interaction-induced
breakdown of gully coherence is explored via magnetotransport measurements in
high-quality Bernal-stacked (ABA) trilayer graphene. At zero magnetic field, multiple
Lifshitz transitions indicating the formation of Dirac gullies are identified.
In the quantum Hall regime, the emergence of Dirac gullies is evident as an increase
in Landau level degeneracy. When tuning both electric and magnetic fields, electron–electron
interactions can be controllably enhanced until, beyond critical electric and
magnetic fields, the gully degeneracy is eventually lifted. The arising correlated
ground state is consistent with a previously predicted nematic phase that spontaneously
breaks the rotational gully symmetry.
acknowledgement: "We acknowledge funding from the Center for Nanoscience (CeNS) and
by the Deutsche\r\nForschungsgemeinschaft (DFG, German Research Foundation) under
Germany’s Excellence Strategy-EXC-2111-390814868 (MCQST). K.W. and T.T. acknowledge
support from the Elemental Strategy Initiative conducted by the MEXT, Japan (Grant
Number PMXP0112101001) and JSPS KAKENHI (Grant Numbers 19H05790 and JP20H00354)."
article_processing_charge: No
article_type: original
author:
- first_name: Felix
full_name: Winterer, Felix
last_name: Winterer
- first_name: Anna M.
full_name: Seiler, Anna M.
last_name: Seiler
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Fabian R.
full_name: Geisenhof, Fabian R.
last_name: Geisenhof
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: R. Thomas
full_name: Weitz, R. Thomas
last_name: Weitz
citation:
ama: Winterer F, Seiler AM, Ghazaryan A, et al. Spontaneous gully-polarized quantum
hall states in ABA trilayer graphene. Nano Letters. 2022;22(8):3317-3322.
doi:10.1021/acs.nanolett.2c00435
apa: Winterer, F., Seiler, A. M., Ghazaryan, A., Geisenhof, F. R., Watanabe, K.,
Taniguchi, T., … Weitz, R. T. (2022). Spontaneous gully-polarized quantum hall
states in ABA trilayer graphene. Nano Letters. American Chemical Society.
https://doi.org/10.1021/acs.nanolett.2c00435
chicago: Winterer, Felix, Anna M. Seiler, Areg Ghazaryan, Fabian R. Geisenhof, Kenji
Watanabe, Takashi Taniguchi, Maksym Serbyn, and R. Thomas Weitz. “Spontaneous
Gully-Polarized Quantum Hall States in ABA Trilayer Graphene.” Nano Letters.
American Chemical Society, 2022. https://doi.org/10.1021/acs.nanolett.2c00435.
ieee: F. Winterer et al., “Spontaneous gully-polarized quantum hall states
in ABA trilayer graphene,” Nano Letters, vol. 22, no. 8. American Chemical
Society, pp. 3317–3322, 2022.
ista: Winterer F, Seiler AM, Ghazaryan A, Geisenhof FR, Watanabe K, Taniguchi T,
Serbyn M, Weitz RT. 2022. Spontaneous gully-polarized quantum hall states in ABA
trilayer graphene. Nano Letters. 22(8), 3317–3322.
mla: Winterer, Felix, et al. “Spontaneous Gully-Polarized Quantum Hall States in
ABA Trilayer Graphene.” Nano Letters, vol. 22, no. 8, American Chemical
Society, 2022, pp. 3317–22, doi:10.1021/acs.nanolett.2c00435.
short: F. Winterer, A.M. Seiler, A. Ghazaryan, F.R. Geisenhof, K. Watanabe, T. Taniguchi,
M. Serbyn, R.T. Weitz, Nano Letters 22 (2022) 3317–3322.
date_created: 2022-05-15T22:01:41Z
date_published: 2022-04-27T00:00:00Z
date_updated: 2023-08-03T07:12:45Z
day: '27'
department:
- _id: MaSe
doi: 10.1021/acs.nanolett.2c00435
external_id:
arxiv:
- '2109.00556'
isi:
- '000809056900019'
intvolume: ' 22'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2109.00556'
month: '04'
oa: 1
oa_version: Preprint
page: 3317-3322
publication: Nano Letters
publication_identifier:
eissn:
- '15306992'
issn:
- '15306984'
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spontaneous gully-polarized quantum hall states in ABA trilayer graphene
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 22
year: '2022'
...
---
_id: '12139'
abstract:
- lang: eng
text: We demonstrate the formation of robust zero-energy modes close to magnetic
impurities in the iron-based superconductor FeSe1-z Tez. We find that the Zeeman
field generated by the impurity favors a spin-triplet interorbital pairing as
opposed to the spin-singlet intraorbital pairing prevalent in the bulk. The preferred
spin-triplet pairing preserves time-reversal symmetry and is topological, as robust,
topologically protected zero modes emerge at the boundary between regions with
different pairing states. Moreover, the zero modes form Kramers doublets that
are insensitive to the direction of the spin polarization or to the separation
between impurities. We argue that our theoretical results are consistent with
recent experimental measurements on FeSe1-z Tez.
acknowledgement: "We thank Armin Rahmani, Andrey V. Chubukov, Jay D. Sau and Ruixing
Zhang for fruitful discussions. AK and PG are supported by NSF-DMR2037996. PG also
acknowledges support from NSF-DMR1824265. RMF was supported by the U. S. Department
of Energy, Office\r\nof Science, Basic Energy Sciences, Materials Sciences and Engineering
Division, under Award No. DE-SC0020045. Part of this work was performed at the Aspen
Center for Physics, which is supported by National Science Foundation grant PHY-1607611. "
article_number: L201107
article_processing_charge: No
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Ammar
full_name: Kirmani, Ammar
last_name: Kirmani
- first_name: Rafael M.
full_name: Fernandes, Rafael M.
last_name: Fernandes
- first_name: Pouyan
full_name: Ghaemi, Pouyan
last_name: Ghaemi
citation:
ama: Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. Anomalous Shiba states in topological
iron-based superconductors. Physical Review B. 2022;106(20). doi:10.1103/physrevb.106.l201107
apa: Ghazaryan, A., Kirmani, A., Fernandes, R. M., & Ghaemi, P. (2022). Anomalous
Shiba states in topological iron-based superconductors. Physical Review B.
American Physical Society. https://doi.org/10.1103/physrevb.106.l201107
chicago: Ghazaryan, Areg, Ammar Kirmani, Rafael M. Fernandes, and Pouyan Ghaemi.
“Anomalous Shiba States in Topological Iron-Based Superconductors.” Physical
Review B. American Physical Society, 2022. https://doi.org/10.1103/physrevb.106.l201107.
ieee: A. Ghazaryan, A. Kirmani, R. M. Fernandes, and P. Ghaemi, “Anomalous Shiba
states in topological iron-based superconductors,” Physical Review B, vol.
106, no. 20. American Physical Society, 2022.
ista: Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. 2022. Anomalous Shiba states
in topological iron-based superconductors. Physical Review B. 106(20), L201107.
mla: Ghazaryan, Areg, et al. “Anomalous Shiba States in Topological Iron-Based Superconductors.”
Physical Review B, vol. 106, no. 20, L201107, American Physical Society,
2022, doi:10.1103/physrevb.106.l201107.
short: A. Ghazaryan, A. Kirmani, R.M. Fernandes, P. Ghaemi, Physical Review B 106
(2022).
date_created: 2023-01-12T12:04:43Z
date_published: 2022-11-15T00:00:00Z
date_updated: 2023-08-04T08:55:31Z
day: '15'
department:
- _id: MiLe
doi: 10.1103/physrevb.106.l201107
external_id:
arxiv:
- '2207.12425'
isi:
- '000893171800001'
intvolume: ' 106'
isi: 1
issue: '20'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2207.12425'
month: '11'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Anomalous Shiba states in topological iron-based superconductors
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 106
year: '2022'
...
---
_id: '10851'
abstract:
- lang: eng
text: Superconductor-semiconductor hybrid devices are at the heart of several proposed
approaches to quantum information processing, but their basic properties remain
to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant
microwave circuit, probing the breakdown of superconductivity due to an applied
magnetic field. We find a fingerprint from the two-component nature of the hybrid
system, and quantitatively compare with a theory that includes the contribution
of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi
surfaces due to magnetic field. Separately resolving the Al and InAs contributions
allows us to determine the carrier density and mobility in the InAs.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: M. S. acknowledges useful discussions with A. Levchenko and P. A.
Lee, and E. Berg. This research was supported by the Scientific Service Units of
IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication
facility. J. S. and A. G. acknowledge funding from the European Union’s Horizon
2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement
No. 754411.W. M. Hatefipour, W. M. Strickland and J. Shabani acknowledge funding
from Office of Naval Research Award No. N00014-21-1-2450.
article_number: '107701'
article_processing_charge: No
article_type: original
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
orcid: 0000-0002-0672-9295
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: M.
full_name: Hatefipour, M.
last_name: Hatefipour
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Phan DT, Senior JL, Ghazaryan A, et al. Detecting induced p±ip pairing at the
Al-InAs interface with a quantum microwave circuit. Physical Review Letters.
2022;128(10). doi:10.1103/physrevlett.128.107701
apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M.,
Shabani, J., … Higginbotham, A. P. (2022). Detecting induced p±ip pairing at the
Al-InAs interface with a quantum microwave circuit. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/physrevlett.128.107701
chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland,
J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Detecting Induced P±ip
Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical
Review Letters. American Physical Society, 2022. https://doi.org/10.1103/physrevlett.128.107701.
ieee: D. T. Phan et al., “Detecting induced p±ip pairing at the Al-InAs interface
with a quantum microwave circuit,” Physical Review Letters, vol. 128, no.
10. American Physical Society, 2022.
ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn
M, Higginbotham AP. 2022. Detecting induced p±ip pairing at the Al-InAs interface
with a quantum microwave circuit. Physical Review Letters. 128(10), 107701.
mla: Phan, Duc T., et al. “Detecting Induced P±ip Pairing at the Al-InAs Interface
with a Quantum Microwave Circuit.” Physical Review Letters, vol. 128, no.
10, 107701, American Physical Society, 2022, doi:10.1103/physrevlett.128.107701.
short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J.
Shabani, M. Serbyn, A.P. Higginbotham, Physical Review Letters 128 (2022).
date_created: 2022-03-17T11:37:47Z
date_published: 2022-03-11T00:00:00Z
date_updated: 2023-11-30T10:56:03Z
day: '11'
department:
- _id: MaSe
- _id: AnHi
doi: 10.1103/physrevlett.128.107701
ec_funded: 1
external_id:
arxiv:
- '2107.03695'
isi:
- '000771391100002'
pmid:
- ' 35333085'
intvolume: ' 128'
isi: 1
issue: '10'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2107.03695
month: '03'
oa: 1
oa_version: Preprint
pmid: 1
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/characterizing-super-semi-sandwiches-for-quantum-computing/
record:
- id: '10029'
relation: earlier_version
status: public
- id: '14547'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave
circuit
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 128
year: '2022'
...
---
_id: '9770'
abstract:
- lang: eng
text: We study an effective one-dimensional quantum model that includes friction
and spin-orbit coupling (SOC), and show that the model exhibits spin polarization
when both terms are finite. Most important, strong spin polarization can be observed
even for moderate SOC, provided that the friction is strong. Our findings might
help to explain the pronounced effect of chirality on spin distribution and transport
in chiral molecules. In particular, our model implies static magnetic properties
of a chiral molecule, which lead to Shiba-like states when a molecule is placed
on a superconductor, in accordance with recent experimental data.
acknowledgement: "We thank Rafael Barfknecht for useful discussions. This work has
received funding from the European Union’s Horizon 2020 research and innovation
programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (A.G.\r\nand
A.G.V.). M.L. acknowledges support by the European Research Council (ERC) Starting
Grant No. 801770 (ANGULON). Y.P. and O.M. acknowledge funding from the Nidersachsen
Ministry of Science and Culture, and from the\r\nAcademia Sinica Research Program.
O.M. is thankful for support through the Harry de Jur Chair in Applied Science."
article_number: '024430'
article_processing_charge: No
article_type: original
author:
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Hen
full_name: Alpern, Hen
last_name: Alpern
- first_name: Yossi
full_name: Paltiel, Yossi
last_name: Paltiel
- first_name: Oded
full_name: Millo, Oded
last_name: Millo
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
citation:
ama: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. Interplay
between friction and spin-orbit coupling as a source of spin polarization. Physical
Review B. 2021;104(2). doi:10.1103/physrevb.104.024430
apa: Volosniev, A., Alpern, H., Paltiel, Y., Millo, O., Lemeshko, M., & Ghazaryan,
A. (2021). Interplay between friction and spin-orbit coupling as a source of spin
polarization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.104.024430
chicago: Volosniev, Artem, Hen Alpern, Yossi Paltiel, Oded Millo, Mikhail Lemeshko,
and Areg Ghazaryan. “Interplay between Friction and Spin-Orbit Coupling as a Source
of Spin Polarization.” Physical Review B. American Physical Society, 2021.
https://doi.org/10.1103/physrevb.104.024430.
ieee: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, and A. Ghazaryan,
“Interplay between friction and spin-orbit coupling as a source of spin polarization,”
Physical Review B, vol. 104, no. 2. American Physical Society, 2021.
ista: Volosniev A, Alpern H, Paltiel Y, Millo O, Lemeshko M, Ghazaryan A. 2021.
Interplay between friction and spin-orbit coupling as a source of spin polarization.
Physical Review B. 104(2), 024430.
mla: Volosniev, Artem, et al. “Interplay between Friction and Spin-Orbit Coupling
as a Source of Spin Polarization.” Physical Review B, vol. 104, no. 2,
024430, American Physical Society, 2021, doi:10.1103/physrevb.104.024430.
short: A. Volosniev, H. Alpern, Y. Paltiel, O. Millo, M. Lemeshko, A. Ghazaryan,
Physical Review B 104 (2021).
date_created: 2021-08-04T15:05:32Z
date_published: 2021-07-01T00:00:00Z
date_updated: 2023-08-10T14:27:07Z
day: '01'
department:
- _id: MiLe
doi: 10.1103/physrevb.104.024430
ec_funded: 1
external_id:
arxiv:
- '2101.05173'
isi:
- '000678780800003'
intvolume: ' 104'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2101.05173
month: '07'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interplay between friction and spin-orbit coupling as a source of spin polarization
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 104
year: '2021'
...
---
_id: '10025'
abstract:
- lang: eng
text: Ferromagnetism is most common in transition metal compounds but may also arise
in low-density two-dimensional electron systems, with signatures observed in silicon,
III-V semiconductor systems, and graphene moiré heterostructures. Here we show
that gate-tuned van Hove singularities in rhombohedral trilayer graphene drive
the spontaneous ferromagnetic polarization of the electron system into one or
more spin- and valley flavors. Using capacitance measurements on graphite-gated
van der Waals heterostructures, we find a cascade of density- and electronic displacement
field tuned phase transitions marked by negative electronic compressibility. The
transitions define the boundaries between phases where quantum oscillations have
either four-fold, two-fold, or one-fold degeneracy, associated with a spin and
valley degenerate normal metal, spin-polarized `half-metal', and spin and valley
polarized `quarter metal', respectively. For electron doping, the salient features
are well captured by a phenomenological Stoner model with a valley-anisotropic
Hund's coupling, likely arising from interactions at the lattice scale. For hole
filling, we observe a richer phase diagram featuring a delicate interplay of broken
symmetries and transitions in the Fermi surface topology. Finally, by rotational
alignment of a hexagonal boron nitride substrate to induce a moiré superlattice,
we find that the superlattice perturbs the preexisting isospin order only weakly,
leaving the basic phase diagram intact while catalyzing the formation of topologically
nontrivial gapped states whenever itinerant half- or quarter metal states occur
at half- or quarter superlattice band filling. Our results show that rhombohedral
trilayer graphene is an ideal platform for well-controlled tests of many-body
theory and reveal magnetism in moiré materials to be fundamentally itinerant in
nature.
acknowledgement: "The authors acknowledge discussions with A. Macdonald, L. Fu, F.
Wang and M. Zaletel. AFY acknowledges support of the National Science Foundation
under DMR1654186, and the Gordon and Betty Moore Foundation under award GBMF9471.
The authors acknowledge the use of the research facilities within the California
NanoSystems Institute, supported by the University of California, Santa Barbara
and the University of California, Office of the President.\r\nK.W. and T.T. acknowledge
support from the Elemental Strategy Initiative conducted by the MEXT, Japan, Grant
Number JPMXP0112101001 and JSPS KAKENHI, Grant Number JP20H00354. EB and TH were
supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement
No. 817799). A.G. acknowledges support by the European Unions Horizon 2020 research
and innovation program under the Marie Sklodowska-Curie Grant Agreement\r\nNo. 754411.\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Haoxin
full_name: Zhou, Haoxin
last_name: Zhou
- first_name: Tian
full_name: Xie, Tian
last_name: Xie
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: James R.
full_name: Ehrets, James R.
last_name: Ehrets
- first_name: Eric M.
full_name: Spanton, Eric M.
last_name: Spanton
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrea F.
full_name: Young, Andrea F.
last_name: Young
citation:
ama: Zhou H, Xie T, Ghazaryan A, et al. Half and quarter metals in rhombohedral
trilayer graphene. Nature. 2021. doi:10.1038/s41586-021-03938-w
apa: Zhou, H., Xie, T., Ghazaryan, A., Holder, T., Ehrets, J. R., Spanton, E. M.,
… Young, A. F. (2021). Half and quarter metals in rhombohedral trilayer graphene.
Nature. Springer Nature. https://doi.org/10.1038/s41586-021-03938-w
chicago: Zhou, Haoxin, Tian Xie, Areg Ghazaryan, Tobias Holder, James R. Ehrets,
Eric M. Spanton, Takashi Taniguchi, et al. “Half and Quarter Metals in Rhombohedral
Trilayer Graphene.” Nature. Springer Nature, 2021. https://doi.org/10.1038/s41586-021-03938-w.
ieee: H. Zhou et al., “Half and quarter metals in rhombohedral trilayer graphene,”
Nature. Springer Nature, 2021.
ista: Zhou H, Xie T, Ghazaryan A, Holder T, Ehrets JR, Spanton EM, Taniguchi T,
Watanabe K, Berg E, Serbyn M, Young AF. 2021. Half and quarter metals in rhombohedral
trilayer graphene. Nature.
mla: Zhou, Haoxin, et al. “Half and Quarter Metals in Rhombohedral Trilayer Graphene.”
Nature, Springer Nature, 2021, doi:10.1038/s41586-021-03938-w.
short: H. Zhou, T. Xie, A. Ghazaryan, T. Holder, J.R. Ehrets, E.M. Spanton, T. Taniguchi,
K. Watanabe, E. Berg, M. Serbyn, A.F. Young, Nature (2021).
date_created: 2021-09-19T22:01:25Z
date_published: 2021-09-01T00:00:00Z
date_updated: 2023-08-14T07:04:06Z
day: '01'
department:
- _id: MaSe
- _id: MiLe
doi: 10.1038/s41586-021-03938-w
ec_funded: 1
external_id:
arxiv:
- '2104.00653'
isi:
- '000706977400002'
isi: 1
keyword:
- condensed matter - mesoscale and nanoscale physics
- condensed matter - strongly correlated electrons
- multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2104.00653
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/s41586-021-04181-z
scopus_import: '1'
status: public
title: Half and quarter metals in rhombohedral trilayer graphene
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10527'
abstract:
- lang: eng
text: We show that in a two-dimensional electron gas with an annular Fermi surface,
long-range Coulomb interactions can lead to unconventional superconductivity by
the Kohn-Luttinger mechanism. Superconductivity is strongly enhanced when the
inner and outer Fermi surfaces are close to each other. The most prevalent state
has chiral p-wave symmetry, but d-wave and extended s-wave pairing are also possible.
We discuss these results in the context of rhombohedral trilayer graphene, where
superconductivity was recently discovered in regimes where the normal state has
an annular Fermi surface. Using realistic parameters, our mechanism can account
for the order of magnitude of Tc, as well as its trends as a function of electron
density and perpendicular displacement field. Moreover, it naturally explains
some of the outstanding puzzles in this material, that include the weak temperature
dependence of the resistivity above Tc, and the proximity of spin singlet superconductivity
to the ferromagnetic phase.
acknowledgement: We thank Yang-Zhi Chou, Andrey Chubukov, Johannes Hofmann, Steve
Kivelson, Sri Raghu, and Sankar das Sarma, Jay Sau, Fengcheng Wu, and Andrea Young
for many stimulating discussions and for their comments on the manuscript. E.B.
thanks S. Chatterjee, T. Wang, and M. Zaletel for a collaboration on a related topic.
A.G. acknowledges support by the European Unions Horizon 2020 research and innovation
program under the Marie Sklodowska-Curie Grant Agreement No. 754411. E.B. and T.H.
were supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement
No. 817799), by the Israel-USA Binational Science Foundation (BSF), and by a Research
grant from Irving and Cherna Moskowitz.
article_number: '247001'
article_processing_charge: No
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Tobias
full_name: Holder, Tobias
last_name: Holder
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Erez
full_name: Berg, Erez
last_name: Berg
citation:
ama: 'Ghazaryan A, Holder T, Serbyn M, Berg E. Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene.
Physical Review Letters. 2021;127(24). doi:10.1103/physrevlett.127.247001'
apa: 'Ghazaryan, A., Holder, T., Serbyn, M., & Berg, E. (2021). Unconventional
superconductivity in systems with annular Fermi surfaces: Application to rhombohedral
trilayer graphene. Physical Review Letters. American Physical Society.
https://doi.org/10.1103/physrevlett.127.247001'
chicago: 'Ghazaryan, Areg, Tobias Holder, Maksym Serbyn, and Erez Berg. “Unconventional
Superconductivity in Systems with Annular Fermi Surfaces: Application to Rhombohedral
Trilayer Graphene.” Physical Review Letters. American Physical Society,
2021. https://doi.org/10.1103/physrevlett.127.247001.'
ieee: 'A. Ghazaryan, T. Holder, M. Serbyn, and E. Berg, “Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene,”
Physical Review Letters, vol. 127, no. 24. American Physical Society, 2021.'
ista: 'Ghazaryan A, Holder T, Serbyn M, Berg E. 2021. Unconventional superconductivity
in systems with annular Fermi surfaces: Application to rhombohedral trilayer graphene.
Physical Review Letters. 127(24), 247001.'
mla: 'Ghazaryan, Areg, et al. “Unconventional Superconductivity in Systems with
Annular Fermi Surfaces: Application to Rhombohedral Trilayer Graphene.” Physical
Review Letters, vol. 127, no. 24, 247001, American Physical Society, 2021,
doi:10.1103/physrevlett.127.247001.'
short: A. Ghazaryan, T. Holder, M. Serbyn, E. Berg, Physical Review Letters 127
(2021).
date_created: 2021-12-10T07:51:33Z
date_published: 2021-12-09T00:00:00Z
date_updated: 2023-08-14T13:19:13Z
day: '09'
department:
- _id: MaSe
doi: 10.1103/physrevlett.127.247001
ec_funded: 1
external_id:
arxiv:
- '2109.00011'
isi:
- '000923819400004'
intvolume: ' 127'
isi: 1
issue: '24'
keyword:
- general physics and astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2109.00011
month: '12'
oa: 1
oa_version: Preprint
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
link:
- description: News on IST Webpage
relation: press_release
url: https://ist.ac.at/en/news/resolving-the-puzzles-of-graphene-superconductivity/
scopus_import: '1'
status: public
title: 'Unconventional superconductivity in systems with annular Fermi surfaces: Application
to rhombohedral trilayer graphene'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 127
year: '2021'
...
---
_id: '10628'
abstract:
- lang: eng
text: The surface states of 3D topological insulators in general have negligible
quantum oscillations (QOs) when the chemical potential is tuned to the Dirac points.
In contrast, we find that topological Kondo insulators (TKIs) can support surface
states with an arbitrarily large Fermi surface (FS) when the chemical potential
is pinned to the Dirac point. We illustrate that these FSs give rise to finite-frequency
QOs, which can become comparable to the extremal area of the unhybridized bulk
bands. We show that this occurs when the crystal symmetry is lowered from cubic
to tetragonal in a minimal two-orbital model. We label such surface modes as 'shadow
surface states'. Moreover, we show that the sufficient next-nearest neighbor out-of-plane
hybridization leading to shadow surface states can be self-consistently stabilized
for tetragonal TKIs. Consequently, shadow surface states provide an important
example of high-frequency QOs beyond the context of cubic TKIs.
acknowledgement: PG acknowledges support from National Science Foundation Awards No.
DMR-1824265 for this work. AG acknowledges support from the European Union's Horizon
2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement
No. 754411. EMN is supported by ASU startup grant. OE is in part supported by NSF-DMR-1904716.
article_number: '123042'
article_processing_charge: No
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Emilian M.
full_name: Nica, Emilian M.
last_name: Nica
- first_name: Onur
full_name: Erten, Onur
last_name: Erten
- first_name: Pouyan
full_name: Ghaemi, Pouyan
last_name: Ghaemi
citation:
ama: Ghazaryan A, Nica EM, Erten O, Ghaemi P. Shadow surface states in topological
Kondo insulators. New Journal of Physics. 2021;23(12). doi:10.1088/1367-2630/ac4124
apa: Ghazaryan, A., Nica, E. M., Erten, O., & Ghaemi, P. (2021). Shadow surface
states in topological Kondo insulators. New Journal of Physics. IOP Publishing.
https://doi.org/10.1088/1367-2630/ac4124
chicago: Ghazaryan, Areg, Emilian M. Nica, Onur Erten, and Pouyan Ghaemi. “Shadow
Surface States in Topological Kondo Insulators.” New Journal of Physics.
IOP Publishing, 2021. https://doi.org/10.1088/1367-2630/ac4124.
ieee: A. Ghazaryan, E. M. Nica, O. Erten, and P. Ghaemi, “Shadow surface states
in topological Kondo insulators,” New Journal of Physics, vol. 23, no.
12. IOP Publishing, 2021.
ista: Ghazaryan A, Nica EM, Erten O, Ghaemi P. 2021. Shadow surface states in topological
Kondo insulators. New Journal of Physics. 23(12), 123042.
mla: Ghazaryan, Areg, et al. “Shadow Surface States in Topological Kondo Insulators.”
New Journal of Physics, vol. 23, no. 12, 123042, IOP Publishing, 2021,
doi:10.1088/1367-2630/ac4124.
short: A. Ghazaryan, E.M. Nica, O. Erten, P. Ghaemi, New Journal of Physics 23 (2021).
date_created: 2022-01-16T23:01:28Z
date_published: 2021-12-23T00:00:00Z
date_updated: 2023-08-17T06:54:54Z
day: '23'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1088/1367-2630/ac4124
ec_funded: 1
external_id:
arxiv:
- '2012.11625'
isi:
- '000734063700001'
file:
- access_level: open_access
checksum: 0c3cb6816242fa8afd1cc87a5fe77821
content_type: application/pdf
creator: cchlebak
date_created: 2022-01-17T10:01:58Z
date_updated: 2022-01-17T10:01:58Z
file_id: '10632'
file_name: 2021_NewJourPhys_Ghazaryan.pdf
file_size: 2533102
relation: main_file
success: 1
file_date_updated: 2022-01-17T10:01:58Z
has_accepted_license: '1'
intvolume: ' 23'
isi: 1
issue: '12'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: New Journal of Physics
publication_identifier:
issn:
- 1367-2630
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Shadow surface states in topological Kondo insulators
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 23
year: '2021'
...
---
_id: '10029'
abstract:
- lang: eng
text: Superconductor-semiconductor hybrids are platforms for realizing effective
p-wave superconductivity. Spin-orbit coupling, combined with the proximity effect,
causes the two-dimensional semiconductor to inherit p±ip intraband pairing, and
application of magnetic field can then result in transitions to the normal state,
partial Bogoliubov Fermi surfaces, or topological phases with Majorana modes.
Experimentally probing the hybrid superconductor-semiconductor interface is challenging
due to the shunting effect of the conventional superconductor. Consequently, the
nature of induced pairing remains an open question. Here, we use the circuit quantum
electrodynamics architecture to probe induced superconductivity in a two dimensional
Al-InAs hybrid system. We observe a strong suppression of superfluid density and
enhanced dissipation driven by magnetic field, which cannot be accounted for by
the depairing theory of an s-wave superconductor. These observations are explained
by a picture of independent intraband p±ip superconductors giving way to partial
Bogoliubov Fermi surfaces, and allow for the first characterization of key properties
of the hybrid superconducting system.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: This research was supported by the Scientific Service Units of IST
Austria through resources provided by the MIBA Machine Shop and the nanofabrication
facility. JS and AG were supported by funding from the European Union’s Horizon
2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement
No.754411.
article_number: '2107.03695'
article_processing_charge: No
author:
- first_name: Duc T
full_name: Phan, Duc T
id: 29C8C0B4-F248-11E8-B48F-1D18A9856A87
last_name: Phan
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
orcid: 0000-0002-0672-9295
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: M.
full_name: Hatefipour, M.
last_name: Hatefipour
- first_name: W. M.
full_name: Strickland, W. M.
last_name: Strickland
- first_name: J.
full_name: Shabani, J.
last_name: Shabani
- first_name: Maksym
full_name: Serbyn, Maksym
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Phan DT, Senior JL, Ghazaryan A, et al. Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv.
apa: Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M.,
Shabani, J., … Higginbotham, A. P. (n.d.). Breakdown of induced p±ip pairing in
a superconductor-semiconductor hybrid. arXiv.
chicago: Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland,
J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Breakdown of Induced P±ip
Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, n.d.
ieee: D. T. Phan et al., “Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid,” arXiv. .
ista: Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn
M, Higginbotham AP. Breakdown of induced p±ip pairing in a superconductor-semiconductor
hybrid. arXiv, 2107.03695.
mla: Phan, Duc T., et al. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor
Hybrid.” ArXiv, 2107.03695.
short: D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J.
Shabani, M. Serbyn, A.P. Higginbotham, ArXiv (n.d.).
date_created: 2021-09-21T08:41:02Z
date_published: 2021-07-08T00:00:00Z
date_updated: 2024-02-21T12:36:52Z
day: '08'
department:
- _id: MaSe
- _id: AnHi
- _id: MiLe
ec_funded: 1
external_id:
arxiv:
- '2107.03695'
language:
- iso: eng
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url: https://arxiv.org/abs/2107.03695
month: '07'
oa: 1
oa_version: Preprint
project:
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call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: arXiv
publication_status: submitted
related_material:
record:
- id: '10851'
relation: later_version
status: public
- id: '9636'
relation: research_data
status: public
status: public
title: Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '8652'
abstract:
- lang: eng
text: Nature creates electrons with two values of the spin projection quantum number.
In certain applications, it is important to filter electrons with one spin projection
from the rest. Such filtering is not trivial, since spin-dependent interactions
are often weak, and cannot lead to any substantial effect. Here we propose an
efficient spin filter based upon scattering from a two-dimensional crystal, which
is made of aligned point magnets. The polarization of the outgoing electron flux
is controlled by the crystal, and reaches maximum at specific values of the parameters.
In our scheme, polarization increase is accompanied by higher reflectivity of
the crystal. High transmission is feasible in scattering from a quantum cavity
made of two crystals. Our findings can be used for studies of low-energy spin-dependent
scattering from two-dimensional ordered structures made of magnetic atoms or aligned
chiral molecules.
acknowledgement: "This work has received funding from the European Union’s Horizon
2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement
No. 754411 (A.G.V. and A.G.). M.L. acknowledges support by the Austrian Science
Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC)
Starting\r\nGrant No. 801770 (ANGULON)."
article_number: '178'
article_processing_charge: Yes
article_type: original
author:
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
citation:
ama: Ghazaryan A, Lemeshko M, Volosniev A. Filtering spins by scattering from a
lattice of point magnets. Communications Physics. 2020;3. doi:10.1038/s42005-020-00445-8
apa: Ghazaryan, A., Lemeshko, M., & Volosniev, A. (2020). Filtering spins by
scattering from a lattice of point magnets. Communications Physics. Springer
Nature. https://doi.org/10.1038/s42005-020-00445-8
chicago: Ghazaryan, Areg, Mikhail Lemeshko, and Artem Volosniev. “Filtering Spins
by Scattering from a Lattice of Point Magnets.” Communications Physics.
Springer Nature, 2020. https://doi.org/10.1038/s42005-020-00445-8.
ieee: A. Ghazaryan, M. Lemeshko, and A. Volosniev, “Filtering spins by scattering
from a lattice of point magnets,” Communications Physics, vol. 3. Springer
Nature, 2020.
ista: Ghazaryan A, Lemeshko M, Volosniev A. 2020. Filtering spins by scattering
from a lattice of point magnets. Communications Physics. 3, 178.
mla: Ghazaryan, Areg, et al. “Filtering Spins by Scattering from a Lattice of Point
Magnets.” Communications Physics, vol. 3, 178, Springer Nature, 2020, doi:10.1038/s42005-020-00445-8.
short: A. Ghazaryan, M. Lemeshko, A. Volosniev, Communications Physics 3 (2020).
date_created: 2020-10-13T09:48:59Z
date_published: 2020-10-09T00:00:00Z
date_updated: 2023-08-22T09:58:46Z
day: '09'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1038/s42005-020-00445-8
ec_funded: 1
external_id:
isi:
- '000581681000001'
file:
- access_level: open_access
checksum: 60cd35b99f0780acffc7b6060e49ec8b
content_type: application/pdf
creator: dernst
date_created: 2020-10-14T15:16:28Z
date_updated: 2020-10-14T15:16:28Z
file_id: '8662'
file_name: 2020_CommPhysics_Ghazaryan.pdf
file_size: 1462934
relation: main_file
success: 1
file_date_updated: 2020-10-14T15:16:28Z
has_accepted_license: '1'
intvolume: ' 3'
isi: 1
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 26031614-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P29902
name: Quantum rotations in the presence of a many-body environment
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
publication: Communications Physics
publication_identifier:
issn:
- 2399-3650
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Filtering spins by scattering from a lattice of point magnets
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 3
year: '2020'
...