Microwave assisted resonant domain wall nucleation in permalloy nanowires

Masamitsu Hayashi*, Yukiko K. Takahashi, Seiji Mitani

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

We have designed a system to study microwave assisted domain wall nucleation in permalloy nanowires. We find a substantial decrease in the nucleation field when microwave fields are applied, in comparison to pulse fields. A clear resonance peak is observed in the frequency dependence of the nucleation field, which coincides with the uniform mode ferromagnetic resonance frequency. Owing to the well-defined nucleation process, the switching field distribution is small in contrast to previous reports. Our results show that localized microwave field provides an efficient tool for injecting domain walls into magnetic nanowires.

本文言語English
論文番号172406
ジャーナルApplied Physics Letters
101
17
DOI
出版ステータスPublished - 2012 10月 22
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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