Domain wall propagation in magnetic nanowires by spin-polarized current injection

被引：283

作者：

Vernier, N ^{[1
]}

Allwood, DA ^{[1
]}

Atkinson, D ^{[1
]}

Cooke, MD ^{[1
]}

Cowbu, RP ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Sci Labs, Nanomagnetism Grp, Durham DH1 3LE, England

来源：

EUROPHYSICS LETTERS | 2004年 / 65卷 / 04期

关键词：

D O I：

10.1209/epl/i2003-10112-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate movement of a head-to-head domain wall through a magnet nanowire of permalloy (Ni81Fe19) simply by passing an electrical current through the domain wall and without any external magnetic field applied. The effect depends on the sense and magnitude of the electrical current and allows direct propagation of domain walls through complex nanowire shapes, contrary to the case of magnetic-field-induced propagation. The efficiency of this mechanism has been evaluated and the effective force acting on the wall has been found equal to 0.44 x 10(-9) N A(-1).

引用

页码：526 / 532

页数：7

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