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

45 引用 (Scopus)

抜粋

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.

元の言語English
記事番号122505
ジャーナルApplied Physics Letters
91
発行部数12
DOI
出版物ステータスPublished - 2007 9 28
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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  • これを引用

    Nozaki, Y., Tateishi, K., Taharazako, S., Ohta, M., Yoshimura, S., & Matsuyama, K. (2007). Microwave-assisted magnetization reversal in 0.36-μm -wide Permalloy wires. Applied Physics Letters, 91(12), [122505]. https://doi.org/10.1063/1.2786593