Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature gradients in yttrium iron garnet platinum bilayers

Michael Schreier, Gerrit E.W. Bauer, Vitaliy I. Vasyuchka, Joost Flipse, Ken Ichi Uchida, Johannes Lotze, Viktor Lauer, Andrii V. Chumak, Alexander A. Serga, Shunsuke Daimon, Takashi Kikkawa, Eiji Saitoh, Bart J. Van Wees, Burkard Hillebrands, Rudolf Gross, Sebastian T.B. Goennenwein

研究成果: Article査読

45 被引用数 (Scopus)

抄録

We carried out a concerted effort to determine the absolute sign of the inverse spin Hall effect voltage generated by spin currents injected into a normal metal. We focus on yttrium iron garnet (YIG)|platinum bilayers at room temperature, generating spin currents by microwaves and temperature gradients. We find consistent results for different samples and measurement setups that agree with theory. We suggest a right-hand-rule to define a positive spin Hall angle corresponding to the voltage expected for the simple case of scattering of free electrons from repulsive Coulomb charges.

本文言語English
論文番号025001
ジャーナルJournal of Physics D: Applied Physics
48
2
DOI
出版ステータスPublished - 2015 1 21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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