Phase transition between the quantum spin Hall and insulator phases in 3D: emergence of a topological gapless phase

被引:1023
作者
Murakami, Shuichi [1 ]
机构
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
来源
NEW JOURNAL OF PHYSICS | 2007年 / 9卷
关键词
D O I
10.1088/1367-2630/9/9/356
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Phase transitions between the quantum spin Hall ( QSH) and the insulator phases in three dimensions ( 3D) are studied. We find that in inversion-asymmetric systems there appears a gapless phase between the QSH and insulator phases in 3D which is in contrast with the 2D case. Existence of this gapless phase stems from a topological nature of gapless points ( diabolical points) in 3D, but not in 2D.
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页数:15
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