Surface-acoustic-wave-driven spin pumping in Y3Fe 5O12/Pt hybrid structure

Ken Ichi Uchida, Toshu An, Yosuke Kajiwara, Masaya Toda, Eiji Saitoh

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

A spin current generated from a surface acoustic wave (SAW) was observed in an Y3Fe5O12 (YIG)/Pt hybrid structure. At the YIG/Pt interface, a SAW generated in the YIG layer was found to pump a spin current into the Pt layer, which was detected through the inverse spin-Hall effect in the Pt. The YIG/Pt lateral structure combined with a piezoelectric wedge transducer enables the systematic investigation of the spin-voltage distribution due to the SAW in the YIG. Since the observed phenomenon has high affinity with SAW-based electronics, it will pave the way for constructing spintronic SAW devices.

Original languageEnglish
Article number212501
JournalApplied Physics Letters
Volume99
Issue number21
DOIs
Publication statusPublished - 2011 Nov 21

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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