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, and V. Baltz
Phys. Rev. B 100, 174409 – Published 6 November 2019

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.

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  • Received 29 August 2019

DOI:https://doi.org/10.1103/PhysRevB.100.174409

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

O. Gladii1,*, L. Frangou1, A. Hallal1, R. L. Seeger1, P. Noël1, G. Forestier1, S. Auffret1, M. Rubio-Roy1, P. Warin1, L. Vila1, S. Wimmer2, H. Ebert2, S. Gambarelli3, M. Chshiev1, and V. Baltz1,†

  • 1Univ. Grenoble Alpes, CNRS, CEA, Grenoble INP, SPINTEC, F-38000 Grenoble, France
  • 2Universität München, Department Chemie, Butenandtstr. 5–13, D-81377 München, Germany
  • 3Univ. Grenoble Alpes, CEA, SYMMES, F-38000 Grenoble, France

  • *olga_gladiy@ukr.net
  • vincent.baltz@cea.fr

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Issue

Vol. 100, Iss. 17 — 1 November 2019

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