Anomalous and spin Hall effects in magnetic granular films

被引：2
|
作者：
Inoue, Jun-ichiro [1 ]
Tanaka, Takuro [2 ]
Kontani, Hiroshi [2 ]
机构：
[1] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan
来源：
PHYSICAL REVIEW B | 2009年 / 80卷 / 02期
关键词：
electronic structure; ferromagnetic materials; giant magnetoresistance; gold alloys; granular materials; magnetic moments; magnetic thin films; palladium alloys; platinum alloys; silver alloys; spin Hall effect; tight-binding calculations; GIANT MAGNETORESISTANCE; ALLOYS; SUPERLATTICES; MULTILAYERS;
D O I：
10.1103/PhysRevB.80.020405
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We propose a simple method to confirm the crossover effect; a change in the power-law dependence of the anomalous and spin Hall conductivities with respect to the longitudinal resistivity for magnetic granular films exhibiting giant magnetoresistance (GMR). Adopting a phenomenological theory, which explains the GMR in magnetic granular films, we show that a higher order term of the longitudinal resistivity appears in the Hall resistivity owing to the crossover effect. The result may resolve a controversy in the anomalous Hall effect observed in a magnetic granular film.
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收藏
页数：4
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