Quantum Spin Hall Effect in a Transition Metal Oxide Na2IrO3

被引：422

作者：

Shitade, Atsuo ^{[1
]}

Katsura, Hosho ^{[2
]}

Kunes, Jan ^{[3
,4
]}

Qi, Xiao-Liang ^{[5
]}

Zhang, Shou-Cheng ^{[5
]}

Nagaosa, Naoto ^{[1
,2
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[2] RIKEN, ASI, Cross Correlated Mat Res Grp, Wako, Saitama 3510198, Japan

[3] Univ Augsburg, Ctr Elect Correlat & Magnetism, Inst Phys, D-86135 Augsburg, Germany

[4] Acad Sci Czech Republic, Inst Phys, Prague 16253, Czech Republic

[5] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 25期

关键词：

ab initio calculations; antiferromagnetism; band structure; quantum Hall effect; sodium compounds; spin Hall effect; spin-orbit interactions; tight-binding calculations; STATE;

D O I：

10.1103/PhysRevLett.102.256403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study theoretically the electronic states in a 5d transition metal oxide Na2IrO3, in which both the spin-orbit interaction and the electron correlation play crucial roles. A tight-binding model analysis together with the first-principles band structure calculation predicts that this material is a layered quantum spin Hall system. Because of the electron correlation, an antiferromagnetic order first develops at the edge, and later inside the bulk at low temperatures.

引用

页数：4

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