Two Interacting Helical Edge Modes in Quantum Spin Hall Systems

被引：35

作者：

Tanaka, Yukio ^{[1
]}

Nagaosa, Naoto ^{[2
,3
]}

机构：

[1] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[2] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

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

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 16期

关键词：

PHASE-TRANSITION; CHARGE; STATE;

D O I：

10.1103/PhysRevLett.103.166403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study theoretically two interacting one-dimensional helical modes at the edges of the quantum spin Hall systems. A new type of interedge correlated liquid without a spin gap is found when the intraedge repulsion is stronger than the interedge repulsion. This liquid shows a diverging density wave and superconductivity correlations much stronger than those of the spinfull electrons. Possible experimental observations are also discussed.

引用

页数：4

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