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Publication details
Zigzag Magnetic Order in the Iridium Oxide Na2IrO3
Authors | |
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Year of publication | 2013 |
Type | Article in Periodical |
Magazine / Source | Physical Review Letters |
MU Faculty or unit | |
Citation | |
web | http://prl.aps.org/abstract/PRL/v110/i9/e097204 |
Doi | http://dx.doi.org/10.1103/PhysRevLett.110.097204 |
Field | Solid matter physics and magnetism |
Keywords | layered iridates; quantum magnetism; spin-orbital entanglement; |
Description | We explore the phase diagram of spin-orbit Mott insulators on a honeycomb lattice, within the Kitaev-Heisenberg model extended to its full parameter space. Zigzag-type magnetic order is found to occupy a large part of the phase diagram of the model, and its physical origin is explained as due to interorbital t2g-eg hopping. Magnetic susceptibility, spin wave spectra, and zigzag order parameter are calculated and compared to the experimental data, obtaining thereby the spin coupling constants in Na2IrO3 and Li2IrO3. |
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