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

Soo Man Seo, Kyoung Jin Lee

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)153-156
Number of pages4
JournalJournal of Magnetics
Volume13
Issue number4
Publication statusPublished - 2008 Dec 1

Fingerprint

polarizers
torque
Torque
oscillators
Anisotropy
anisotropy
Magnetization
magnetization

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

Cite this

Spin-torque oscillator using a perpendicular polarizer with double free layers. / Seo, Soo Man; Lee, Kyoung Jin.

In: Journal of Magnetics, Vol. 13, No. 4, 01.12.2008, p. 153-156.

Research output: Contribution to journalArticle

@article{3b07f700fd984c458c0231caa7eb83d5,
title = "Spin-torque oscillator using a perpendicular polarizer with double free layers",
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",
author = "Seo, {Soo Man} and Lee, {Kyoung Jin}",
year = "2008",
month = "12",
day = "1",
language = "English",
volume = "13",
pages = "153--156",
journal = "Journal of Magnetics",
issn = "1226-1750",
publisher = "The Korean Magnestics Society",
number = "4",

}

TY - JOUR

T1 - Spin-torque oscillator using a perpendicular polarizer with double free layers

AU - Seo, Soo Man

AU - Lee, Kyoung Jin

PY - 2008/12/1

Y1 - 2008/12/1

N2 - 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.

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

UR - http://www.scopus.com/inward/record.url?scp=64549101160&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=64549101160&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:64549101160

VL - 13

SP - 153

EP - 156

JO - Journal of Magnetics

JF - Journal of Magnetics

SN - 1226-1750

IS - 4

ER -