The topological structure of the integral quantum Hall effect in magnetic semiconductor-superconductor hybrids

被引：0
|
作者：
Ren Ji-Rong [1 ]
Zhu Hui [1 ]
机构：
[1] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China
来源：
CHINESE PHYSICS B | 2009年 / 18卷 / 06期
基金：
中国国家自然科学基金;
关键词：
integral quantum Hall effect; gauge potential; Hopf index; vortex; GENERAL DECOMPOSITION-THEORY; BIFURCATION;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An unconventional integer quantum Hall regime was found in magnetic semiconductor-superconductor hybrids. By making use of the decomposition of the gauge potential on a U(I) principal fibre bundle over k-space, we study the topological structure of the integral Hall conductance. It is labeled by the Hopf index beta and the Brouwer degree eta. The Hall conductance topological current and its evolution is discussed.
引用
收藏
页码：2535 / 2541
页数：7
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