Current-driven resonances in magnetic multilayers

被引：57

作者：

Tsoi, M ^{[1
]}

Tsoi, V

Bass, J

Jansen, AGM

Wyder, P

机构：

[1] Max Planck Inst Festkorperforsch, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France

[2] CNRS, F-38042 Grenoble 9, France

[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow, Russia

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

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.89.246803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We describe complex variations in resistance of a Co/Cu multilayer, generated by injection of an adjustable dc current density (similar to10(9) A/cm(2)) via a point contact. We attribute these variations to coupling of current-induced spin waves to lattice vibrations, leading especially to current-driven resonant excitations of phonons. We propose a simple model to explain the observed structured behavior of the variations as a function of the applied current and magnetic field.

引用

页数：4

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