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Modeling of magnetization precession in spin-torque nano-oscillators with a tilted polarizer

Authors :
Linhui Wang
Zhiwei Hou
Yufeng Qin
Xuecheng Cao
Gang Lv
Yaowen Liu
Hong Zhang
Guihua Li
Source :
AIP Advances, Vol 5, Iss 7, Pp 077171-077171-6 (2015)
Publication Year :
2015
Publisher :
AIP Publishing LLC, 2015.

Abstract

The spin-torque induced magnetization precession dynamics are studied in a spin-valve with a tilted spin polarizer. Macrospin simulations demonstrate that the frequency of precession state depends both on the external DC current and the intrinsic parameters of devices such as the tilted angle of spin polarizer, the damping factor and saturation magnetization of the free layer. The dependence role of those parameters is characterized by phase diagrams. An analytical model is presented, which can successfully interpret the features of precession frequency.

Details

Language :
English
ISSN :
21583226
Volume :
5
Issue :
7
Database :
OpenAIRE
Journal :
AIP Advances
Accession number :
edsair.doi.dedup.....473da42419600f34fd20a2bc7e047802