Home 
Retrieve | Search
 
Issues
No.4(pp.115-181)
Home > Issues > Volume 13 (2008) > No.4(pp.115-181)
 
Spin-Torque Oscillator using a Perpendicular Polarizer with Double Free Layers
Journal of Magnetics, Volume 13, Number 4, 31 Dec 2008, Pages 153-156
Soo-Man Seo(Department of Materials Science and Engineering, Korea University), Kyung-Jin Lee* (Department of Materials Science and Engineering, Korea University)
Abstract
We conducted a micromagnetic modeling study to investigate the spin torque oscillator (STO) using a perpendicular polarizer. We used an additional layer of negative anisotropy constant materials (NAM) on a conventional STO. For the NAM layer, the magnetic easy plane is parallel to the in-plane easy axis of the free layer, and inhibits the development of the out-of-plane component of the magnetization in the free layer. As a result, this new type of STO provides a high frequency limit up to 50 GHz.
Keywords: spin transfer torque; spin torque oscillator; anisotropy energy; negative anisotropy
DOI: 10.4283/JMAG.2008.13.4.153
Full Text: PDF
 
Copyright(c) 2009 The Korean Magnetics Society All rights reserved. E-mail : komag@unitel.co.kr