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

O. Gladii, L. Frangou, A. Hallal, R. L. Seeger, P. Noël, G. Forestier, S. Auffret, M. Rubio-Roy, P. Warin, L. Vila, S. Wimmer, H. Ebert, S. Gambarelli, M. Chshiev, V. Baltz

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13 Scopus citations

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.
Original languageEnglish (US)
JournalPhysical Review B
Volume100
Issue number17
DOIs
StatePublished - Nov 6 2019
Externally publishedYes

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