Orientation Dependence of the Intrinsic Anomalous Hall Effect in hcp Cobalt

被引：87

作者：

Roman, Eric ^{[1
]}

Mokrousov, Yuriy ^{[1
]}

Souza, Ivo ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.103.097203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We carry out first-principles calculations of the dependence of the intrinsic anomalous Hall conductivity of hcp Co on the spin magnetization direction. The Hall conductivity drops from 481 to 116 S/cm as the magnetization is tilted from the easy axis (c axis) to the ab plane. These values agree reasonably well with measurements on single crystals, while the angular average of 226 S/cm is in excellent agreement with the value of 205 S/cm measured in polycrystalline films. The strong intrinsic anisotropy is shown to arise from quasidegeneracies near the Fermi level.

引用

页数：4

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