Topological insulators on a Mobius strip

被引：20
|
作者：
Huang, Lang-Tao [1 ]
Lee, Dung-Hai [2 ,3 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[3] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW B | 2011年 / 84卷 / 19期
关键词：
QUANTIZED HALL CONDUCTANCE; HGTE QUANTUM-WELLS; EDGE STATES; REALIZATION; PHASE;
D O I：
10.1103/PhysRevB.84.193106
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the two-dimensional Chern insulator and spin Hall insulator on a nonorientable Riemann surface, the Mobius strip, where the usual band-structure topological invariant is not defined. We show that while the flow pattern of edge currents can detect the twist of the Mobius strip in the case of Chern insulator, it can not do so for the spin Hall insulator.
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页数：4
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