Control of spin-wave emission from spin-torque nano-oscillators by microwave pumping

被引：21

作者：

Demidov, Vladislav E. ^{[1
]}

Urazhdin, Sergei ^{[2
]}

Tiberkevich, Vasyl ^{[3
]}

Slavin, Andrei ^{[3
]}

Demokritov, Sergej O. ^{[1
]}

机构：

[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany

[2] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA

[3] Oakland Univ, Dept Phys, Rochester, MI USA

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 06期

基金：

美国国家科学基金会;

关键词：

MAGNETIC MULTILAYERS; DRIVEN;

D O I：

10.1103/PhysRevB.83.060406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate that microwave pumping of a spin-torque nano-oscillator can lead to transfer of the spin-wave energy generated by the oscillator into a mode with frequency given by the difference between the pumping frequency and that of the auto-oscillation. The decay length of spin waves at the combination frequency is significantly increased, while the directionality of emission is preserved. The observed phenomenon provides a route for the implementation of nanosized spin-wave emitters with controllable emission characteristics for applications in next-generation microwave electronic devices.

引用

页数：4

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