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

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

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Abstract

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.

Original languageEnglish
Article number116105
JournalJournal of Applied Physics
Volume109
Issue number11
DOIs
Publication statusPublished - 2011 Jun 1
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Harii, K., An, T., Kajiwara, Y., Ando, K., Nakayama, H., Yoshino, T., & Saitoh, E. (2011). Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film. Journal of Applied Physics, 109(11), [116105]. https://doi.org/10.1063/1.3594661