Silva, T.
, Weiler, M.
, Nembach, H.
and Shaw, J.
(2014),
Detection of the dc inverse spin Hall effect due to spin pumping in a novel meander-stripline geometry, IEEE Magnetics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917120
(Accessed December 13, 2024)
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Detection of the dc inverse spin Hall effect due to spin pumping in a novel meander-stripline geometry
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Abstract
The dc voltage obtained from the inverse spin Hall effect (iSHE) due to spin pumping in ferromagnet/normal-metal (NM) bilayers can be unintentionally superimposed with magnetoresistive rectification of ac charge currents in the ferromagnetic layer. We introduce a geometry in which these spurious rectification voltages vanish while the iSHE voltage is maximized. In this geometry, a quantitative study of the dc iSHE is performed in a broad frequency range for Permalloy/NM multilayers with NM=Pt, Ta, Cu/Au, Cu/Pt}. The experimentally recorded voltages can be fully ascribed to the iSHE due to spin pumping. Furthermore we measure a small iSHE voltage in single CoFe thin films.Citation
IEEE Magnetics Letters
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Journals
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Keywords
Microwave magnetics, spin pumping, spin rectification, inverse spin Hall effect
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Created September 3, 2014, Updated October 12, 2021