Spin-transfer interactions in exchange-biased spin valves

被引：13

作者：

Wei, Zhen ^{[1
]}

Basset, Julien ^{[2
]}

Sharma, Amit ^{[3
]}

Bass, Jack ^{[3
]}

Tsoi, Maxim ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

[2] Univ Grenoble 1, F-38041 Grenoble, France

[3] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 07期

基金：

美国国家科学基金会;

关键词：

MAGNETIC MULTILAYER; EXCITATION;

D O I：

10.1063/1.3057951

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We extend to a new antiferromagnetic alloy, IrMn, point-contact based studies of the effect of a large current density on the exchange bias at antiferromagnet/ferromagnet (AFM/F) interfaces. Similarly to the case of AFM=CoFe, a negative current density similar to 10(12) A/m(2) injected through the F=CoFe into an IrMn/CoFe interface was found to increase the exchange bias, while a positive current decreased it. The model used to describe the data for FeMn/CoFe, based on predicted current-induced torques on AFM, can explain the new data. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3057951]

引用

页数：3

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