An Extended Extrinsic Mechanism for Anomalous Hall Effect

被引：0

作者：

Yan Yu-Zhen ^{[1
]}

Li Hui-Wu ^{[1
]}

Hu Liang-Bin ^{[1
]}

机构：

[1] S China Normal Univ, Lab Quantum Informat Technol, Sch Phys & Telecommun Engn, Guangzhou 510631, Guangdong, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2009年 / 52卷 / 06期

基金：

中国国家自然科学基金;

关键词：

anomalous Hall effect; extrinsic mechanism; spin-orbit coupling induced by external electric fields;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The extrinsic mechanism for anomalous Hall effect in ferromagnets is extended to include the contributions both from spin-orbit-dependent impurity scattering and from the spin-orbit coupling induced by external electric fields. The results obtained suggest that, within the framework of the extrinsic mechanisms, the anomalous Hall current in a ferromagnet may also contain a substantial amount of dissipationless contribution independent of impurity scattering. After the contribution from the spin-orbit coupling induced by external electric fields is included, the total anomalous Hall conductivity is about two times larger than that due to spin-orbit dependent impurity scatterings.

引用

页码：1129 / 1133

页数：5

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