Spin transport in half-metallic ferromagnets

Y. Ohnuma, M. Matsuo, S. Maekawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We theoretically investigate spin transport in half-metallic ferromagnets at finite temperatures. The side-jump and skew-scattering contributions to spin Hall conductivity are derived using the Kubo formula. The electron-magnon interaction causes a finite density of states in the energy gap of the minority-spin band and induces spin Hall conductivity. We show that spin Hall conductivity is proportional to T3/2, with T being temperature, and is sensitive to T. We propose that spin Hall conductivity may be a tool to study the minority-spin state.

Original languageEnglish
Article number184405
JournalPhysical Review B
Volume94
Issue number18
DOIs
Publication statusPublished - 2016

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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