Intrinsic versus extrinsic anomalous hall effect in ferromagnets

被引：401

作者：

Onoda, Shigeki ^{[1
]}

Sugimoto, Naoyuki

Nagaosa, Naoto

机构：

[1] Univ Tokyo, Spin Superstruct Project, ERATO, Japan Sci & Technol Agcy,Dept Appl Phys, Tokyo 1138656, Japan

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

[3] Natl Inst Adv Ind Sci & Technol, Correlated Electron Res Ctr, Tsukuba, Ibaraki 3058562, Japan

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 12期

关键词：

SEMICONDUCTORS; CONDUCTIVITY;

D O I：

10.1103/PhysRevLett.97.126602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A unified theory of the anomalous Hall effect (AHE) is presented for multiband ferromagnetic metals with dilute impurities. In the clean limit, the AHE is mostly due to extrinsic skew scattering. When the Fermi level is located around anticrossing of band dispersions split by spin-orbit interaction, the intrinsic AHE to be calculated ab initio is resonantly enhanced by its nonperturbative nature, revealing the extrinsic-to-intrinsic crossover which occurs when the relaxation rate is comparable to the spin-orbit coupling.

引用

页数：4

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