Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate

Modic KA, Smidt TE, Kimchi I, Breznay NP, Biffin A, Choi S, Johnson RD, Coldea R, Watkins-Curry P, McCandless GT, Chan JY, Gandara F, Islam Z, Vishwanath A, Shekhter A, McDonald RD, Analytis JG. 2014. Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate. Nature Communications. 5, 4203.

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Journal Article | Published | English
Author
Modic, Kimberly AIST Austria ; Smidt, Tess E.; Kimchi, Itamar; Breznay, Nicholas P.; Biffin, Alun; Choi, Sungkyun; Johnson, Roger D.; Coldea, Radu; Watkins-Curry, Pilanda; McCandless, Gregory T.; Chan, Julia Y.; Gandara, Felipe
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Abstract
Spin and orbital quantum numbers play a key role in the physics of Mott insulators, but in most systems they are connected only indirectly—via the Pauli exclusion principle and the Coulomb interaction. Iridium-based oxides (iridates) introduce strong spin–orbit coupling directly, such that these numbers become entwined together and the Mott physics attains a strong orbital character. In the layered honeycomb iridates this is thought to generate highly spin–anisotropic magnetic interactions, coupling the spin to a given spatial direction of exchange and leading to strongly frustrated magnetism. Here we report a new iridate structure that has the same local connectivity as the layered honeycomb and exhibits striking evidence for highly spin–anisotropic exchange. The basic structural units of this material suggest that a new family of three-dimensional structures could exist, the ‘harmonic honeycomb’ iridates, of which the present compound is the first example.
Publishing Year
Date Published
2014-06-27
Journal Title
Nature Communications
Volume
5
Article Number
4203
ISSN
IST-REx-ID

Cite this

Modic KA, Smidt TE, Kimchi I, et al. Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate. Nature Communications. 2014;5. doi:10.1038/ncomms5203
Modic, K. A., Smidt, T. E., Kimchi, I., Breznay, N. P., Biffin, A., Choi, S., … Analytis, J. G. (2014). Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate. Nature Communications. Springer Science and Business Media LLC. https://doi.org/10.1038/ncomms5203
Modic, Kimberly A, Tess E. Smidt, Itamar Kimchi, Nicholas P. Breznay, Alun Biffin, Sungkyun Choi, Roger D. Johnson, et al. “Realization of a Three-Dimensional Spin–Anisotropic Harmonic Honeycomb Iridate.” Nature Communications. Springer Science and Business Media LLC, 2014. https://doi.org/10.1038/ncomms5203.
K. A. Modic et al., “Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate,” Nature Communications, vol. 5. Springer Science and Business Media LLC, 2014.
Modic KA, Smidt TE, Kimchi I, Breznay NP, Biffin A, Choi S, Johnson RD, Coldea R, Watkins-Curry P, McCandless GT, Chan JY, Gandara F, Islam Z, Vishwanath A, Shekhter A, McDonald RD, Analytis JG. 2014. Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate. Nature Communications. 5, 4203.
Modic, Kimberly A., et al. “Realization of a Three-Dimensional Spin–Anisotropic Harmonic Honeycomb Iridate.” Nature Communications, vol. 5, 4203, Springer Science and Business Media LLC, 2014, doi:10.1038/ncomms5203.
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