Zigzag Magnetic Order in the Iridium Oxide Na2IrO3

被引：431
作者：
Chaloupka, Jiri [1 ,2 ]
Jackeli, George [1 ,3 ]
Khaliullin, Giniyat [1 ]
机构：
[1] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
[2] Masaryk Univ, Cent European Inst Technol, CS-61137 Brno, Czech Republic
[3] Andronikashvili Inst Phys, GE-0177 Tbilisi, Georgia
来源：
PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 09期
基金：
欧盟第七框架计划;
关键词：
D O I：
10.1103/PhysRevLett.110.097204
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 t(2g) - e(g) hopping. The 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. DOI: 10.1103/PhysRevLett.110.097204
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页数：5
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