Spin-torque oscillator using a perpendicular polarizer with double free layers

Soo Man Seo; Kyung Jin Lee

doi:10.4283/JMAG.2008.13.4.153

Spin-torque oscillator using a perpendicular polarizer with double free layers

Soo Man Seo
, Kyung Jin Lee^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	153-156
Number of pages	4
Journal	Journal of Magnetics
Volume	13
Issue number	4
DOIs	https://doi.org/10.4283/JMAG.2008.13.4.153
Publication status	Published - 2008

Keywords

Anisotropy
Negative anisotropy
Spin torque oscillator
Spin transfer torque

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.4283/JMAG.2008.13.4.153

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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 = "Anisotropy, Negative anisotropy, Spin torque oscillator, Spin transfer torque",

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AU - Seo, Soo Man

AU - Lee, Kyung Jin

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AB - 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.

KW - Anisotropy

KW - Negative anisotropy

KW - Spin torque oscillator

KW - Spin transfer torque

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Spin-torque oscillator using a perpendicular polarizer with double free layers

Abstract

Keywords

ASJC Scopus subject areas

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