Magnetization reversal induced by spin accumulation in ferromagnetic transition-metal dots

被引：14

作者：

Inoue, J ^{[1
]}

Brataas, A

机构：

[1] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[2] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.70.140406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use the orthodox theory to study current-induced magnetization reversal in ferromagnetic quantum dots. Current-induced spin accumulation causes a free energy change comparable to the charging energy. The free energy change depends both on the current direction, the direction of the equilibrium magnetization, and the characteristic features of transition-metal electronic states. Magnetization reversal occurs when the free energy change is comparable to the anisotropy energy, which is experimentally feasible.

引用

页码：140406 / 1

页数：4

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