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    Self-induced inverse spin Hall effect in ferromagnets: Demonstration through nonmonotonic temperature dependence in permalloy

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    Type
    Article
    Authors
    Gladii, O.
    Frangou, L.
    Hallal, A.
    Seeger, R. L.
    Noël, P.
    Forestier, G.
    Auffret, S.
    Rubio-Roy, M.
    Warin, P.
    Vila, L.
    Wimmer, S.
    Ebert, H.
    Gambarelli, S.
    Chshiev, M.
    Baltz, V.
    KAUST Grant Number
    Grant No. OSR-2015-CRG4-2626
    Date
    2019-11-06
    Submitted Date
    2019-08-29
    Permanent link to this record
    http://hdl.handle.net/10754/668611
    
    Metadata
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    Abstract
    We investigated the self-induced inverse spin Hall effect in ferromagnets. Temperature (T), thickness (t), and angular-dependent measurements of transverse voltage in spin pumping experiments were performed with permalloy films. Results revealed nonmonotonous T dependence of the self-induced transverse voltage. Qualitative agreement was found with first-principles calculations unravelling the skew scattering, side-jump, and intrinsic contributions to the T-dependent spin Hall conductivity. Experimental data were similar whatever the material in contact with permalloy (oxides or metals), and revealed an increase of produced current with t, demonstrating a bulk origin of the effect.
    Citation
    Gladii, O., Frangou, L., Hallal, A., Seeger, R. L., Noël, P., Forestier, G., … Baltz, V. (2019). Self-induced inverse spin Hall effect in ferromagnets: Demonstration through nonmonotonic temperature dependence in permalloy. Physical Review B, 100(17). doi:10.1103/physrevb.100.174409
    Sponsors
    We acknowledge financial support from the French national research agency (ANR) (Grant No. ANR-15-CE24-0015-01) and KAUST (Grant No. OSR-2015-CRG4-2626). We also thank O. Sipr for fruitful discussions and M. Gallagher-Gambarelli for critical reading of the manuscript.
    Publisher
    American Physical Society (APS)
    Journal
    Physical Review B
    DOI
    10.1103/physrevb.100.174409
    arXiv
    1909.00976
    Additional Links
    https://link.aps.org/doi/10.1103/PhysRevB.100.174409
    ae974a485f413a2113503eed53cd6c53
    10.1103/physrevb.100.174409
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