Temperature dependence of ferromagnetic resonance spectra of permalloy on (Bi1- x Sb x )2Te3

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Abstract

We investigate the temperature dependence of ferromagnetic resonance spectra of permalloy (Py: Ni0.80Fe0.20) on (Bi1- x Sb x )2Te3 with x = 0-1. Smaller resonance fields and broader linewidths are observed for Py/(Bi,Sb)2Te3 than those for Py/substrate below ∼40 K. The result indicates the presence of the coupling as well as spin pumping at the interface between Py and (Bi,Sb)2Te3.

Original languageEnglish
Article number020302
JournalJapanese journal of applied physics
Volume57
Issue number2
DOIs
Publication statusPublished - 2018 Feb

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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