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American Physical Society, Physical Review Letters, 17(111)

DOI: 10.1103/physrevlett.111.176601

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Experimental test of the spin mixing interface conductivity concept

Journal article published in 2013 by Mathias Weiler ORCID, Matthias Althammer ORCID, Michael Schreier, Johannes Lotze, Matthias Pernpeintner, Sibylle Meyer, Hans Huebl, Rudolf Gross, Akashdeep Kamra, Jiang Xiao, Yan-Ting Chen, HuJun Jiao, Gerrit E. W. Bauer, Sebastian T. B. Goennenwein ORCID
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This paper is available in a repository.

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Abstract

We perform a quantitative, comparative study of the spin pumping, spin Seebeck and spin Hall magnetoresistance effects, all detected via the inverse spin Hall effect in a series of over 20 yttrium iron garnet/Pt samples. Our experimental results fully support present, exclusively spin current-based, theoretical models using a single set of plausible parameters for spin mixing conductance, spin Hall angle and spin diffusion length. Our findings establish the purely spintronic nature of the aforementioned effects and provide a quantitative description in particular of the spin Seebeck effect.