Spin momentum transfer in current perpendicular to the plane spin valves

被引：14

作者：

Covington, M ^{[1
]}

Rebei, A ^{[1
]}

Parker, GJ ^{[1
]}

Seigler, MA ^{[1
]}

机构：

[1] Seagate Res, Pittsburgh, PA 15222 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 16期

关键词：

D O I：

10.1063/1.1707227

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present experimental and numerical micromagnetic. data on the effect of spin momentum transfer in current perpendicular to the plane spin valves. Starting from a configuration with orthogonal free- and pinned-layer magnetizations, the free-layer magnetization exhibits abrupt current-induced switching that is qualitatively consistent with the spin torque model. When operating the spin valve as a field sensor, spin transfer can produce a change in resistance that mimics an effective magnetic field and induce magnetic instability that requires a larger bias field in order to stabilize the device. (C) 2004 American Institute of Physics.

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页码：3103 / 3105

页数：3

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