Modification of the magnetization dynamics of a NiFe nanodot due to thermal spin injection

Nagarjuna Asam, Kazuto Yamanoi, Takashi Kimura

研究成果: Contribution to journalArticle

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An array of NiFe nanodots has been prepared on a Cu/CoFeAl film. Since a thermal spin current is expected to be excited owing to a large spin-dependent Seebeck coefficient for the CoFeAl, we investigate the magnetization dynamics of the NiFe dots under the temperature gradient along the vertical direction. By using vector network analyzer measurements, we have demonstrated that the temperature gradient produces modulations of the frequency of ferromagnetic resonance and the linewidth of the resonance spectra. The observed parabolic dependences are well explained by the damping-like and field-like components of spin transfer torque.

元の言語英語
記事番号224004
ジャーナルJournal of Physics D: Applied Physics
51
発行部数22
DOI
出版物ステータス出版済み - 5 10 2018

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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