Self-consistent determination of spin Hall angles in selected 5d metals by thermal spin injection

D. Qu, S. Y. Huang, B. F. Miao, S. X. Huang, C. L. Chien

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

We demonstrate a self-consistent and versatile method to determine the relative spin Hall angle θSH and spin diffusion length λSF of selected 5d metals (Pt, Au, Ta, and W) by thermal spin injection from a common ferromagnetic insulator, yttrium iron garnet, into thin metal films of various thicknesses. The values of θSH for Pt and Au are opposite in sign to those of Ta and W. The inverse spin Hall effect voltage depends on spin Hall resistivity, which is the product of θSH and electrical resistivity. We also show evidence of magnetic proximity effects including magnetoresistance and the anomalous Hall effect in these 5d metals, except for Au.

Original languageEnglish (US)
Article number140407
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number14
DOIs
StatePublished - Apr 17 2014
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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