Spin-polarized currents in exchange spring systems

被引：4

作者：

Franchin, Matteo ^{[1
,2
]}

Bordignon, Giuliano ^{[1
,2
]}

Fischbacher, Thomas ^{[2
]}

Meier, Guido ^{[3
,4
]}

Zimmermann, Juergen ^{[2
]}

de Groot, Peter ^{[1
]}

Fangohr, Hans ^{[2
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Univ Southampton, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

[3] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany

[4] Univ Hamburg, Zentrum Mikrostrukturforsch, D-20355 Hamburg, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2837665

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a computational study of the magnetization dynamics of a trilayer exchange spring system in the form of a cylindrical nanopillar in the presence of an electric current. A three-dimensional micromagnetic model is used, where the interaction between the current and the local magnetization is taken into account following a recent model by Zhang and Li [Phys. Rev. Lett. 93, 127204 (2004)] We obtain a stationary rotation of the magnetization of the system around its axis, accompanied by a compression of the artificial domain wall in the direction of the electron flow. (c) 2008 American Institute of Physics.

引用

页数：3

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