Modification of critical spin torque current induced by rf excitation

被引：19

作者：

Florez, S. H. ^{[1
]}

Katine, J. A. ^{[1
]}

Carey, M. ^{[1
]}

Folks, L. ^{[1
]}

Terris, B. D. ^{[1
]}

机构：

[1] Hitachi Global Storage Technol, San Jose Res Ctr, San Jose, CA 95135 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 07期

关键词：

D O I：

10.1063/1.2834239

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We characterize the spin transfer torque induced reversal for current-perpendicular-to-plane spin valves with in-plane magnetic anisotropy at low temperature when driven by both direct and rf currents. We find that for rf currents with frequencies in the range of the dc driven resonances, the rf current strongly influences the preswitching precessional modes leading to a clear dependence of the critical dc switching current on the external rf frequency excitation. (c) 2008 American Institute of Physics.

引用

页数：3

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