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

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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 languageEnglish
Article number07C307
JournalJournal of Applied Physics
Issue number7
Publication statusPublished - 2012 Apr 1
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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