Spin Hall noise
Kamra, Akashdeep · Witek, Friedrich P. · Meyer, Sibylle · Huebl, Hans · Geprägs, Stephan · Gross, Rudolf · Bauer, Gerrit E. W. · Goennenwein, Sebastian T. B.
Original · EN
We measure the low-frequency thermal fluctuations of pure spin current in a Platinum film deposited on yttrium iron garnet via the inverse spin Hall effect (ISHE)-mediated voltage noise as a function of the angle α between the magnetization and the transport direction. The results are consistent with the fluctuation dissipation theorem in terms of the recently discovered spin Hall magnetoresistance (SMR). We present a microscopic description of the α dependence of the voltage noise in terms of spin current fluctuations and ISHE.
English translation
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