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Proceedings Paper

Thickness dependence of spin pumping at YIG/Pt interface
Author(s): T. Tashiro; R. Takahashi; Y. Kajiwara; K. Ando; H. Nakayama; T. Yoshino; D. Kikuchi; E. Saitoh
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Paper Abstract

We report Y3Fe5O12 thickness dependence of spin pumping, spin current generation from magnetization dynamics, in magnetic insulator Y3Fe5O12/metal Pt bilayer films. We prepared different thickness Y3Fe5O12 films by the metal-organic decomposition method and measured the electromotive force due to the inverse spin Hall effect induced by the spin pumping in Y3Fe5O12/Pt films. We found that spin-mixing conductance, or spin-pumping efficiency, Y3Fe5O12/Pt films constant for the different thickness is almost same in various Y3Fe5O12 thickness. This result is consistent with the prediction of the spin pumping; the spin-pumping efficiency is determined by the exchange interaction at the Y3Fe5O12/Pt interface. Keywords: Spintronics, Spin pumping, Spin current, Inverse spin Hall effect

Paper Details

Date Published: 9 October 2012
PDF: 9 pages
Proc. SPIE 8461, Spintronics V, 846106 (9 October 2012); doi: 10.1117/12.930833
Show Author Affiliations
T. Tashiro, Tohoku Univ. (Japan)
R. Takahashi, Tohoku Univ. (Japan)
Y. Kajiwara, Tohoku Univ. (Japan)
K. Ando, Tohoku Univ. (Japan)
H. Nakayama, Tohoku Univ. (Japan)
T. Yoshino, Tohoku Univ. (Japan)
D. Kikuchi, Tohoku Univ. (Japan)
E. Saitoh, Tohoku Univ. (Japan)
CREST, Japan Science and Technology Agency (Japan)
Japan Atomic Energy Agency (Japan) and Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 8461:
Spintronics V
Henri-Jean Drouhin; Jean-Eric Wegrowe; Manijeh Razeghi, Editor(s)

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