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 language | English |
|---|---|
| Article number | 116105 |
| Journal | Journal of Applied Physics |
| Volume | 109 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2011 Jun 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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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 journal › Article
}
TY - JOUR
T1 - Frequency dependence of spin pumping in Pt/Y3Fe 5O12 film
AU - Harii, Kazuya
AU - An, Toshu
AU - Kajiwara, Yosuke
AU - Ando, Kazuya
AU - Nakayama, Hiroyasu
AU - Yoshino, Tatsuro
AU - Saitoh, Eiji
PY - 2011/6/1
Y1 - 2011/6/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79959437031&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79959437031&partnerID=8YFLogxK
U2 - 10.1063/1.3594661
DO - 10.1063/1.3594661
M3 - Article
AN - SCOPUS:79959437031
VL - 109
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 11
M1 - 116105
ER -