Quantum spin Hall effect in a transition metal oxide Na2IrO3

Shitade, Atsuo

关键词: ELECTRON CORRELATION;    HALL EFFECT;    L-S COUPLING;    MATERIALS;    ORDERS;    OXIDES;    SPIN;    TEMPERATURE RANGE 0065-0273 K;    TRANSITION ELEMENTS MATSCI;   

DOI  :  10.2172/979955
RP-ID  :  SLAC-PUB-13930
PID  :  OSTI ID: 979955
Others  :  TRN: US201012%%1107

学科分类：化学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

We study theoretically the electronic states in a 5d transition metal oxide Na{sub 2}I{sub r}O{sub 3}, in which both the spin-orbit interaction and the electron correlation play crucial roles. Tight-binding model analysis together with the fisrt-principles band structure calculation predicts that this material is a layered quantum spin Hall system. Due to the electron correlation, an antiferromagnetic order first develops at the edge, and later inside the bulk at low temperatures.