Self-induced inverse spin Hall effect in ferromagnets: Demonstration through nonmonotonic temperature dependence in permalloy
Seeger, R. L.
KAUST Grant NumberGrant No. OSR-2015-CRG4-2626
Permanent link to this recordhttp://hdl.handle.net/10754/668611
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AbstractWe 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.
CitationGladii, 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
SponsorsWe 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.
PublisherAmerican Physical Society (APS)
JournalPhysical Review B