Pure detection of the acoustic spin pumping in Pt/YIG/PZT structures

Ken Ichi Uchida, Zhiyong Qiu, Takashi Kikkawa, Eiji Saitoh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The acoustic spin pumping (ASP) stands for the generation of a spin voltage from sound waves in a ferromagnet/paramagnet junction. In this letter, we propose and demonstrate a method for pure detection of the ASP, which enables the separation of sound-wave-driven spin currents from the spin Seebeck effect due to the heating of a sample caused by a sound-wave injection. Our demonstration using a Pt/YIG/PZT sample shows that the ASP signal in this structure measured by a conventional method is considerably offset by the heating signal and that the pure ASP signal is one order of magnitude greater than that reported in the previous study.

Original languageEnglish
Pages (from-to)26-29
Number of pages4
JournalSolid State Communications
Volume198
DOIs
Publication statusPublished - 2014 Nov

Keywords

  • A. Insulators
  • A. Magnetically ordered materials
  • D. Phonons
  • D. Spin dynamics

ASJC Scopus subject areas

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

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