Surface spin-transfer torque and spin-injection effective field in ferromagnetic junctions: Unified theory

被引：5
|
作者：
Elliott, RJ
Epshtein, EM
Gulyaev, YV
Zilberman, PE [1 ]
机构：
[1] Inst Radioengn & Elect, Fryazino 141190, Moscow District, Russia
[2] Univ Oxford, Dept Phys, Oxford OX1, England
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 300卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
spin injection; spin torque; magnetic junctions;
D O I：
10.1016/j.jmmm.2005.10.047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We consider theoretically a current flowing perpendicular to interfaces of a spin-valve type ferromagnetic metallic junction. For the first time ail effective approach is investigated to calculate a simultaneous action of the two current effects, namely, the nonequilibrium longitudinal spin injection and the transversal spin-transfer surface torque. Dispersion relation for fluctuations is derived and solved. Nonlinear problem is solved about steady state arising due to instability for a thick enough free layer. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：122 / 126
页数：5
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