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Cited by 596

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Spin Waves and Revised Crystal Structure of Honeycomb IridateNa2IrO3

Open access
Choi, S. K., Coldea, R., Kolmogorov, A. N., Lancaster, T., Mazin, I. I., Blundell, S. J., Radaelli, P. G., Singh, Yogesh, Gegenwart, P., Choi, K. R., Cheong, S.-W., Baker, P. J., Stock, C., Taylor, J.·2012·Physical Review Letters

Abstract

We report inelastic neutron scattering measurements on Na2IrO3, a candidate for the Kitaev spin model on the honeycomb lattice. We observe spin-wave excitations below 5 meV with a dispersion that can be accounted for by including substantial further-neighbor exchanges that stabilize zigzag magnetic order. The onset of long-range magnetic order below T(N)=15.3 K is confirmed via the observation of oscillations in zero-field muon-spin rotation experiments. Combining single-crystal diffraction and density functional calculations we propose a revised crystal structure model with significant departures from the ideal 90° Ir-O-Ir bonds required for dominant Kitaev exchange.

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Metadata

Authors
Choi, S. K., Coldea, R., Kolmogorov, A. N., Lancaster, T., Mazin, I. I., Blundell, S. J., Radaelli, P. G., Singh, Y., Gegenwart, P., Choi, K. R., Cheong, S.-W., Baker, P. J., Stock, C., & Taylor, J.
Venue
Physical Review Letters
Published
2012-03-20
Volume
108
Issue
12
Pages
127204-127204
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2038928438
Cited by
596
References
2
FWCI
28.68
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Spin Waves and Revised Crystal Structure of Honeycomb IridateNa2IrO3. https://app.cochat.ai/papers/10.1103/physrevlett.108.127204
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Choi, S. K., Coldea, R., Kolmogorov, A. N., Lancaster, T., Mazin, I. I., Blundell, S. J., Radaelli, P. G., Singh, Y., Gegenwart, P., Choi, K. R., Cheong, S.-W., Baker, P. J., Stock, C., & Taylor, J. (2012). Spin Waves and Revised Crystal Structure of Honeycomb IridateNa2IrO3. Physical Review Letters. https://doi.org/10.1103/physrevlett.108.127204

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.