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

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

Research output: Contribution to journalArticle

34 Citations (Scopus)

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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pumping
demodulators
microwave frequencies
precession
Hall effect
magnetic permeability
microwaves
magnetization
cycles

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

Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film. / Harii, Kazuya; An, Toshu; Kajiwara, Yosuke; Ando, Kazuya; Nakayama, Hiroyasu; Yoshino, Tatsuro; Saitoh, Eiji.

In: Journal of Applied Physics, Vol. 109, No. 11, 116105, 01.06.2011.

Research output: Contribution to journalArticle

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, vol. 109, no. 11, 116105. https://doi.org/10.1063/1.3594661
Harii K, An T, Kajiwara Y, Ando K, Nakayama H, Yoshino T et al. Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film. Journal of Applied Physics. 2011 Jun 1;109(11). 116105. https://doi.org/10.1063/1.3594661
Harii, Kazuya ; An, Toshu ; Kajiwara, Yosuke ; Ando, Kazuya ; Nakayama, Hiroyasu ; Yoshino, Tatsuro ; Saitoh, Eiji. / Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film. In: Journal of Applied Physics. 2011 ; Vol. 109, No. 11.
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