Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates

K.A. Modic, B.J. Ramshaw, J.B. Betts, N.P. Breznay, J.G. Analytis, R.D. McDonald, A. Shekhter, Nature Communications 8 (2017).

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Journal Article | Published | English
Author
Modic, Kimberly AIST Austria ; Ramshaw, B. J.; Betts, J. B.; Breznay, Nicholas P.; Analytis, James G.; McDonald, Ross D.; Shekhter, Arkady
Abstract
The complex antiferromagnetic orders observed in the honeycomb iridates are a double-edged sword in the search for a quantum spin-liquid: both attesting that the magnetic interactions provide many of the necessary ingredients, while simultaneously impeding access. Focus has naturally been drawn to the unusual magnetic orders that hint at the underlying spin correlations. However, the study of any particular broken symmetry state generally provides little clue about the possibility of other nearby ground states. Here we use magnetic fields approaching 100 Tesla to reveal the extent of the spin correlations in γ-lithium iridate. We find that a small component of field along the magnetic easy-axis melts long-range order, revealing a bistable, strongly correlated spin state. Far from the usual destruction of antiferromagnetism via spin polarization, the high-field state possesses only a small fraction of the total iridium moment, without evidence for long-range order up to the highest attainable magnetic fields.
Publishing Year
Date Published
2017-08-01
Journal Title
Nature Communications
Volume
8
Issue
1
Article Number
180
ISSN
IST-REx-ID

Cite this

Modic KA, Ramshaw BJ, Betts JB, et al. Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates. Nature Communications. 2017;8(1). doi:10.1038/s41467-017-00264-6
Modic, K. A., Ramshaw, B. J., Betts, J. B., Breznay, N. P., Analytis, J. G., McDonald, R. D., & Shekhter, A. (2017). Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-017-00264-6
Modic, Kimberly A, B. J. Ramshaw, J. B. Betts, Nicholas P. Breznay, James G. Analytis, Ross D. McDonald, and Arkady Shekhter. “Robust Spin Correlations at High Magnetic Fields in the Harmonic Honeycomb Iridates.” Nature Communications. Springer Nature, 2017. https://doi.org/10.1038/s41467-017-00264-6.
K. A. Modic et al., “Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates,” Nature Communications, vol. 8, no. 1. Springer Nature, 2017.
Modic KA, Ramshaw BJ, Betts JB, Breznay NP, Analytis JG, McDonald RD, Shekhter A. 2017. Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates. Nature Communications. 8(1), 180.
Modic, Kimberly A., et al. “Robust Spin Correlations at High Magnetic Fields in the Harmonic Honeycomb Iridates.” Nature Communications, vol. 8, no. 1, 180, Springer Nature, 2017, doi:10.1038/s41467-017-00264-6.
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