Microwave-assisted magnetization reversal in 0.36-μm -wide Permalloy wires

Y. Nozaki, K. Tateishi, S. Taharazako, M. Ohta, S. Yoshimura, K. Matsuyama

研究成果: Article査読

46 被引用数 (Scopus)

抄録

Microwave-assisted magnetization reversal in a 0.36 μm wide Ni80 Fe20 wire with a natural ferromagnetic resonance frequency of 8.42 GHz was investigated experimentally. Magnetization switching could be detected from a discontinuous change in the ferromagnetic resonance frequency of the wire. The application of microwaves with a frequency of 7.5 GHz and a power of 19.2 dBm reduced the switching field from 217 to 142 Oe. While high-power microwave-assisted switching reduced the dc switching field, it substantially broadened the switching field distribution. This is mainly attributed to inhomogeneous resonance properties of the nucleation sites in the wire.

本文言語English
論文番号122505
ジャーナルApplied Physics Letters
91
12
DOI
出版ステータスPublished - 2007
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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