Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

Takeshi Seki, Ken Ichi Uchida, Takashi Kikkawa, Zhiyong Qiu, Eiji Saitoh, Koki Takanashi

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

We experimentally observed the inverse spin Hall effect (ISHE) of ferromagnetic FePt alloys. Spin Seebeck effect due to the temperature gradient generated the spin current (Js) in the FePt|Y3Fe5O12 (YIG) structure, and Js was injected from YIG to FePt and converted to the charge current through ISHE of FePt. The significant difference in magnetization switching fields for FePt and YIG led to the clear separation of the voltage of ISHE from that of anomalous Nernst effect in FePt. We also investigated the effect of ordering of FePt crystal structure on the magnitude of ISHE voltage in FePt.

Original languageEnglish
Article number092401
JournalApplied Physics Letters
Volume107
Issue number9
DOIs
Publication statusPublished - 2015 Aug 31

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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