Theory of magnetization dynamics in a dual-free-layer spin-torque nano-oscillator with isotropic free layers

被引：2
|
作者：
Prokopenko, O., V [1 ]
Tiberkevich, V. S. [2 ]
Slavin, A. N. [2 ]
机构：
[1] T Shevchenko Natl Univ Kyiv, Fac Radiophys, 64-13 Volodymyrska Str, UA-01601 Kiev, Ukraine
[2] Oakland Univ, Dept Phys, Rochester, MI 48309 USA
来源：
FUNCTIONAL MATERIALS | 2014年 / 21卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.15407/fm21.02.206
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The analytical theory of magnetization dynamics in a dual-free-layer spin-torque nano-oscillator (DFL STNO) operating in the absence of a bias magnetic field is developed. The theory is based on a system of simplified dynamic equations written in collective variables and yields an analytic expression for the upper dc current density threshold of stable magnetization dynamics (generation) in the DFL STNO. This threshold is caused by a dipolar coupling between the free layers and can be controlled by choosing an appropriate geometry of the DFL STNO structure.
引用
收藏
页码：206 / 210
页数：5
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