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.
@article{arxiv.1306.5012,
title = {Experimental test of the spin mixing interface conductivity concept},
author = {Mathias Weiler and Matthias Althammer and Michael Schreier and Johannes Lotze and Matthias Pernpeintner and Sibylle Meyer and Hans Huebl and Rudolf Gross and Akashdeep Kamra and Jiang Xiao and Yan-Ting Chen and HuJun Jiao and Gerrit E. W. Bauer and Sebastian T. B. Goennenwein},
journal= {arXiv preprint arXiv:1306.5012},
year = {2013}
}