Implementation of a nonequilibrium Green's function method to calculate spin-transfer torque

被引：41

作者：

Heiliger, Christian ^{[1
,2
]}

Czerner, Michael ^{[3
]}

Yavorsky, Bogdan Yu. ^{[3
]}

Mertig, Ingrid ^{[3
]}

Stiles, Mark D. ^{[1
]}

机构：

[1] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA

[3] Univ Halle Wittenberg, Dept Phys, D-06099 Halle, Germany

来源：

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

关键词：

D O I：

10.1063/1.2835071

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present an implementation of the steady state Keldysh approach in a Green's function multiple scattering scheme to calculate the nonequilibrium spin density. This density is used to obtain the spin-transfer torque in junctions showing the magnetoresistance effect. We use our implementation to study the spin-transfer torque in metallic Co/Cu/Co junctions. (c) 2008 American Institute of Physics.

引用

页数：3

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