Electrical determination of spin mixing conductance at metal/insulator interface using inverse spin Hall effect

R. Takahashi; R. Iguchi; K. Ando; H. Nakayama; T. Yoshino; E. Saitoh

doi:10.1063/1.3673429

Electrical determination of spin mixing conductance at metal/insulator interface using inverse spin Hall effect

R. Takahashi, R. Iguchi, K. Ando, H. Nakayama, T. Yoshino, E. Saitoh

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The spin mixing conductance at Au/BiY ₂Fe ₅O ₁₂ and Pt/BiY ₂Fe ₅O ₁₂ interfaces was electrically determined using the inverse spin Hall effect (ISHE) and the spin pumping. By measuring the electromotive force due to the ISHE and the ferromagnetic resonance spectra, we evaluated the magnitude of the generated spin currents and the magnetization-precession trajectory. The spin mixing conductance was estimated as 1.82 × 10 ¹⁸m ^-2 for the Pt/BiY ₂Fe ₅O ₁₂ film, and as 2.21 × 10 ¹⁸m ^-2 for the Au/BiY ₂Fe ₅O ₁₂ film, demonstrating efficient spin exchange at these metal/insulator interfaces.

Original language	English
Article number	07C307
Journal	Journal of Applied Physics
Volume	111
Issue number	7
DOIs	https://doi.org/10.1063/1.3673429
Publication status	Published - 2012 Apr 1

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Electrical determination of spin mixing conductance at metal/insulator interface using inverse spin Hall effect",

abstract = "The spin mixing conductance at Au/BiY 2Fe 5O 12 and Pt/BiY 2Fe 5O 12 interfaces was electrically determined using the inverse spin Hall effect (ISHE) and the spin pumping. By measuring the electromotive force due to the ISHE and the ferromagnetic resonance spectra, we evaluated the magnitude of the generated spin currents and the magnetization-precession trajectory. The spin mixing conductance was estimated as 1.82 × 10 18m -2 for the Pt/BiY 2Fe 5O 12 film, and as 2.21 × 10 18m -2 for the Au/BiY 2Fe 5O 12 film, demonstrating efficient spin exchange at these metal/insulator interfaces.",

author = "R. Takahashi and R. Iguchi and K. Ando and H. Nakayama and T. Yoshino and E. Saitoh",

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T1 - Electrical determination of spin mixing conductance at metal/insulator interface using inverse spin Hall effect

AU - Takahashi, R.

AU - Iguchi, R.

AU - Ando, K.

AU - Nakayama, H.

AU - Yoshino, T.

AU - Saitoh, E.

PY - 2012/4/1

Y1 - 2012/4/1

N2 - The spin mixing conductance at Au/BiY 2Fe 5O 12 and Pt/BiY 2Fe 5O 12 interfaces was electrically determined using the inverse spin Hall effect (ISHE) and the spin pumping. By measuring the electromotive force due to the ISHE and the ferromagnetic resonance spectra, we evaluated the magnitude of the generated spin currents and the magnetization-precession trajectory. The spin mixing conductance was estimated as 1.82 × 10 18m -2 for the Pt/BiY 2Fe 5O 12 film, and as 2.21 × 10 18m -2 for the Au/BiY 2Fe 5O 12 film, demonstrating efficient spin exchange at these metal/insulator interfaces.

AB - The spin mixing conductance at Au/BiY 2Fe 5O 12 and Pt/BiY 2Fe 5O 12 interfaces was electrically determined using the inverse spin Hall effect (ISHE) and the spin pumping. By measuring the electromotive force due to the ISHE and the ferromagnetic resonance spectra, we evaluated the magnitude of the generated spin currents and the magnetization-precession trajectory. The spin mixing conductance was estimated as 1.82 × 10 18m -2 for the Pt/BiY 2Fe 5O 12 film, and as 2.21 × 10 18m -2 for the Au/BiY 2Fe 5O 12 film, demonstrating efficient spin exchange at these metal/insulator interfaces.

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