Spin Chern numbers and time-reversal-symmetry-broken quantum spin Hall effect

盛利; 李会超; 杨运友; 盛冬宁; 邢定钰

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Spin Chern numbers and time-reversal-symmetry-broken quantum spin Hall effect

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The quantum spin Hall(QSH) effect is considered to be unstable to perturbations violating the time-reversal(TR) symmetry.We review some recent developments in the search of the QSH effect in the absence of the TR symmetry.The possibility to realize a robust QSH effect by artificial removal of the TR symmetry of the edge states is explored.As a useful tool to characterize topological phases without the TR symmetry,the spin-Chern number theory is introduced.

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《中国物理：英文版》 |2013年第6期|32-48|共17页
作者
盛利; 李会超; 杨运友; 盛冬宁; 邢定钰;
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作者单位

National Laboratory of Solid State Microstructures and Department of Physics;

Nanjing University;

Department of Physics and Astronomy;

California State University;

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原文格式 PDF
正文语种 chi
中图分类量子论;
关键词
spin-polarized transport; quantum spin Hall effect; surface state; edge state; topological insulator;

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Spin Chern numbers and time-reversal-symmetry-broken quantum spin Hall effect

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