Shape-dependent depinning of a domain wall by a magnetic field and a spin-polarized current

被引：4

作者：

Logoboy, N. ^{[1
,2
]}

Shapiro, B. Ya. ^{[1
]}

Sonin, E. B. ^{[2
]}

机构：

[1] Bar Ilan Univ, Dept Phys, Inst Superconduct, IL-52900 Ramat Gan, Israel

[2] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 09期

基金：

以色列科学基金会;

关键词：

MOTION;

D O I：

10.1103/PhysRevB.82.094419

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of sample shape on the depinning of the domain-wall (DW) driven by an applied magnetic field or a spin-polarized current is studied theoretically. The shape effect resulting from the modulation of the sample width (geometric pinning) can essentially affect the DW depinning. We found a good agreement between the ratios of the critical values of the magnetic field and the spin-polarized current predicted by the theory and measured in the experiment.

引用

页数：8

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