Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film

Kazuya Harii, Toshu An, Yosuke Kajiwara, Kazuya Ando, Hiroyasu Nakayama, Tatsuro Yoshino, Eiji Saitoh

研究成果: Article査読

36 被引用数 (Scopus)

抄録

The frequency dependence of magnetization precession in spin pumping has been investigated using the inverse spin-Hall effect in a Pt/ Y 3 Fe 5 O 12 bilayer film. We found that the magnitude of a spin current generated by the spin pumping depends weakly on the applied microwave frequency. This weak dependence, which is attributed to the compensation between the frequency change in the spin-pumping cycle and the dynamic magnetic susceptibility, is favorable for making a spin-current-driven microwave demodulator. This behavior is consistent with a model calculation based on the Landau-Lifshitz-Gilbert equation combined with the spin mixing.

本文言語English
論文番号116105
ジャーナルJournal of Applied Physics
109
11
DOI
出版ステータスPublished - 2011 6 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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