Acoustic parametric pumping of spin waves

Hedyeh Keshtgar, Malek Zareyan, Gerrit E.W. Bauer

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Recent experiments demonstrated generation of spin currents by ultrasound. We can understand this acoustically induced spin pumping in terms of the coupling between magnetization and lattice waves. Here we study the parametric excitation of magnetization by longitudinal acoustic waves and calculate the acoustic threshold power. The induced magnetization dynamics can be detected by the spin pumping into an adjacent normal metal that displays the inverse spin Hall effect.

Original languageEnglish
Pages (from-to)30-34
Number of pages5
JournalSolid State Communications
Volume198
DOIs
Publication statusPublished - 2014 Nov

Keywords

  • D. Instability threshold
  • D. Magnetoelastic effects
  • D. Parametric excitation
  • D. Spin pumping

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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