Microwave-Assisted Magnetization Reversal of Exchange-Coupled Composite Nanopillar with Large Gilbert Damping Constant

Terumitsu Tanaka, Shota Kashiwagi, Yuto Otsuka, Yukio Nozaki, Yang Ki Hong, Kimihide Matsuyama

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Microwave-assisted magnetization reversal (MAMR) characteristics of a single-exchange-coupled composite nanopillar, which consists of ferromagnetically coupled soft and hard magnetic sections, have been discussed in terms of Gilbert damping constant using micromagnetic simulation. The results indicate the occurrence of significant MAMR even when the damping constant of the hard magnetic section is large. The results obtained in this paper greatly contrast those obtained with single-phase hard magnetic pillars. We also found that the magnetization switching time tends to be shorter when the damping constant of the hard magnetic section is large.

本文言語English
論文番号6832785
ジャーナルIEEE Transactions on Magnetics
50
6
DOI
出版ステータスPublished - 2014 6 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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