Electric manipulation of spin relaxation using the spin Hall effect

被引：564

作者：

Ando, K. ^{[1
]}

Takahashi, S. ^{[2
,3
]}

Harii, K. ^{[1
]}

Sasage, K. ^{[1
]}

Ieda, J. ^{[2
,3
]}

Maekawa, S. ^{[2
,3
]}

Saitoh, E. ^{[1
,4
]}

机构：

[1] Keio Univ, Dept Appl Phys & Phys Informat, Yokohama, Kanagawa 2238522, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[3] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

[4] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.101.036601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the spin Hall effect, magnetization relaxation in a Ni(81)Fe(19)/Pt film is manipulated electrically. An electric current applied to the Pt layer exerts spin torque on the entire magnetization of the Ni(81)Fe(19) layer via the macroscopic spin transfer induced by the spin Hall effect and modulates the magnetization relaxation in the Ni(81)Fe(19) layer. This method allows us to tune the magnetization dynamics regardless of the film size without applying electric currents directly to the magnetic layer.

引用

页数：4

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