---
_id: '7066'
abstract:
- lang: eng
text: The excitonic insulator phase has long been predicted to form in proximity
to a band gap opening in the underlying band structure. The character of the pairing
is conjectured to crossover from weak (BCS-like) to strong coupling (BEC-like)
as the underlying band structure is tuned from the metallic to the insulating
side of the gap opening. Here we report the high-magnetic field phase diagram
of graphite to exhibit just such a crossover. By way of comprehensive angle-resolved
magnetoresistance measurements, we demonstrate that the underlying band gap opening
occurs inside the magnetic field-induced phase, paving the way for a systematic
study of the BCS-BEC-like crossover by means of conventional condensed matter
probes.
article_number: '1733'
article_processing_charge: No
article_type: original
author:
- first_name: Z.
full_name: Zhu, Z.
last_name: Zhu
- first_name: R. D.
full_name: McDonald, R. D.
last_name: McDonald
- first_name: A.
full_name: Shekhter, A.
last_name: Shekhter
- first_name: B. J.
full_name: Ramshaw, B. J.
last_name: Ramshaw
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: F. F.
full_name: Balakirev, F. F.
last_name: Balakirev
- first_name: N.
full_name: Harrison, N.
last_name: Harrison
citation:
ama: Zhu Z, McDonald RD, Shekhter A, et al. Magnetic field tuning of an excitonic
insulator between the weak and strong coupling regimes in quantum limit graphite.
Scientific Reports. 2017;7. doi:10.1038/s41598-017-01693-5
apa: Zhu, Z., McDonald, R. D., Shekhter, A., Ramshaw, B. J., Modic, K. A., Balakirev,
F. F., & Harrison, N. (2017). Magnetic field tuning of an excitonic insulator
between the weak and strong coupling regimes in quantum limit graphite. Scientific
Reports. Springer Nature. https://doi.org/10.1038/s41598-017-01693-5
chicago: Zhu, Z., R. D. McDonald, A. Shekhter, B. J. Ramshaw, Kimberly A Modic,
F. F. Balakirev, and N. Harrison. “Magnetic Field Tuning of an Excitonic Insulator
between the Weak and Strong Coupling Regimes in Quantum Limit Graphite.” Scientific
Reports. Springer Nature, 2017. https://doi.org/10.1038/s41598-017-01693-5.
ieee: Z. Zhu et al., “Magnetic field tuning of an excitonic insulator between
the weak and strong coupling regimes in quantum limit graphite,” Scientific
Reports, vol. 7. Springer Nature, 2017.
ista: Zhu Z, McDonald RD, Shekhter A, Ramshaw BJ, Modic KA, Balakirev FF, Harrison
N. 2017. Magnetic field tuning of an excitonic insulator between the weak and
strong coupling regimes in quantum limit graphite. Scientific Reports. 7, 1733.
mla: Zhu, Z., et al. “Magnetic Field Tuning of an Excitonic Insulator between the
Weak and Strong Coupling Regimes in Quantum Limit Graphite.” Scientific Reports,
vol. 7, 1733, Springer Nature, 2017, doi:10.1038/s41598-017-01693-5.
short: Z. Zhu, R.D. McDonald, A. Shekhter, B.J. Ramshaw, K.A. Modic, F.F. Balakirev,
N. Harrison, Scientific Reports 7 (2017).
date_created: 2019-11-19T13:17:46Z
date_published: 2017-05-04T00:00:00Z
date_updated: 2021-01-12T08:11:40Z
day: '04'
ddc:
- '530'
doi: 10.1038/s41598-017-01693-5
extern: '1'
file:
- access_level: open_access
checksum: 801f80b04ecd1ead95c8ab9827cbe067
content_type: application/pdf
creator: dernst
date_created: 2019-11-26T11:58:58Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7111'
file_name: 2017_ScientificReports_Zhu.pdf
file_size: 1571567
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
intvolume: ' 7'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
publication: Scientific Reports
publication_identifier:
issn:
- 2045-2322
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Magnetic field tuning of an excitonic insulator between the weak and strong
coupling regimes in quantum limit graphite
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: 7
year: '2017'
...