Temperature dependence of spin-transfer-induced switching of nanomagnets

被引：114

作者：

Krivorotov, IN ^{[1
]}

Emley, NC ^{[1
]}

Garcia, AGF ^{[1
]}

Sankey, JC ^{[1
]}

Kiselev, SI ^{[1
]}

Ralph, DC ^{[1
]}

Buhrman, RA ^{[1
]}

机构：

[1] Cornell Univ, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 16期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.166603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the temperature, magnetic-field, and current dependence for the switching of nanomagnets by a spin-polarized current. Depending on current bias, switching can occur between either two static magnetic states or a static state and a current-driven precessional mode. In both cases, the switching is thermally activated and governed by the sample temperature, not a higher effective magnetic temperature. The activation barriers for switching between static states depend linearly on current, with a weaker dependence for dynamic to static switching.

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页码：166603 / 1

页数：4

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