Spin injection efficiency through the pumping in epitaxial Co2MnSi/Pt thin film

Y. Sasaki, S. Sugimoto, Y. K. Takahashi, S. Kasai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The spin injection efficiencies in epitaxial Co2MnSi (CMS)/Pt thin films were investigated in spin pumping configuration. The inverse spin Hall (effect) voltage significantly depends on the post-annealing temperature Ta of CMS, which shows one order larger values than those of Fe and CoFe at Ta = 400 °C. The effective spin mixing conductance derived by the analytical model reaches 6.5 × 1019 m-2. Our findings suggest that the Co-based Heusler alloys could be promising material candidates as the spin injection source with spin pumping.

Original languageEnglish
Article number085311
JournalAIP Advances
Volume10
Issue number8
DOIs
Publication statusPublished - 2020 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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