Quantum spin Hall effect and enhanced magnetic response by spin-orbit coupling

被引：558

作者：

Murakami, Shuichi ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.97.236805

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the spin-Hall conductivity in insulators is related to a magnetic susceptibility representing the strength of the spin-orbit coupling. We use this relationship as a guiding principle to search real materials showing quantum spin-Hall effect. As a result, we theoretically predict that two-dimensional bismuth will show the quantum spin-Hall effect, both by calculating the helical edge states, and by showing the nontriviality of the Z(2) topological number, and propose possible experiments.

引用

页数：4

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