Spin-current interaction with a monodomain magnetic body: A model study

被引：900

作者：

Sun, JZ ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.62.570

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

I examined the consequence of a spin-current-induced angular momentum deposition in a monodomain Stoner-Wohlfarth magnetic body. The magnetic dynamics of the particle are modeled using the Landau-Lifshitz-Gilbert equation with a phenomenological damping coefficient cu. Two magnetic potential landscapes are studied in detail: One uniaxial, the other uniaxial in combination with an easy-plane potential term that could be used to model a thin-film geometry with demagnetization. Quantitative predictions are obtained for comparison with experiments.

引用

页码：570 / 578

页数：9

共 11 条

[1] Modification of the Landau-Lifshitz equation in the presence of a spin-polarized current in colossal- and giant-magnetoresistive materials [J].

Bazaliy, YB ;

Jones, BA ;

Zhang, SC .

PHYSICAL REVIEW B, 1998, 57 (06) :R3213-R3216

[2] LOW-FIELD MAGNETORESISTANCE AND DOMAIN DRAG IN FERROMAGNETS [J].

BERGER, L .

JOURNAL OF APPLIED PHYSICS, 1978, 49 (03) :2156-2161

[3] Emission of spin waves by a magnetic multilayer traversed by a current [J].

Berger, L .

PHYSICAL REVIEW B, 1996, 54 (13) :9353-9358

[4] Current-driven magnetization reversal and spin-wave excitations in Co/Cu/Co pillars [J].

Katine, JA ;

Albert, FJ ;

Buhrman, RA ;

Myers, EB ;

Ralph, DC .

PHYSICAL REVIEW LETTERS, 2000, 84 (14) :3149-3152

[5]

LANDAU LD, 1960, ELECTRODYNAMICS CONT, P150

[6] Current-induced switching of domains in magnetic multilayer devices [J].

Myers, EB ;

Ralph, DC ;

Katine, JA ;

Louie, RN ;

Buhrman, RA .

SCIENCE, 1999, 285 (5429) :867-870

[7] Current-driven excitation of magnetic multilayers [J].

Slonczewski, JC .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1996, 159 (1-2) :L1-L7

[8] Excitation of spin waves by an electric current [J].

Slonczewski, JC .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 195 (02) :L261-L268

[9]

SLONCZEWSKI JC, 1956, 003111224 IBM

[10] Current-driven magnetic switching in manganite trilayer junctions [J].

Sun, JZ .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 202 (01) :157-162

← 1 2 →