Extrinsic-intrinsic crossover of the spin Hall effect induced by alloying

Akira Musha, Yusuke Kanno, Kazuya Ando

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We report the observation of the crossover between the extrinsic and intrinsic spin Hall effect induced by alloying. We found that the spin Hall angle, the ratio of the spin Hall conductivity to the electric conductivity, changes drastically by tuning the composition of the Au-Cu alloy. The spin Hall angle changes sign only in a limited range of the Cu concentration due to the extrinsic skew scattering, while the intrinsic contribution becomes dominant with increasing Cu concentration. This observation provides essential information for a fundamental understanding of spin-orbit physics.

Original languageEnglish
Article number054411
JournalPhysical Review Materials
Volume3
Issue number5
DOIs
Publication statusPublished - 2019 May 28

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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