Anisotropic Intrinsic Damping Constant of Epitaxial Co2MnSi Heusler Alloy Films

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著者

    • Yilgin Resul Yilgin Resul
    • Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba-yama, Aramaki, Aoba-ku, Sendai 980-8579, Japan
    • Sakuraba Yuya Sakuraba Yuya
    • Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba-yama, Aramaki, Aoba-ku, Sendai 980-8579, Japan
    • Mizukami Shigemi
    • College of Engineering, Nihon University, Koriyama, Fukushima 963-8642, Japan
    • Ando Yasuo
    • Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba-yama, Aramaki, Aoba-ku, Sendai 980-8579, Japan
    • Miyazaki Terunobu
    • Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba-yama, Aramaki, Aoba-ku, Sendai 980-8579, Japan

抄録

We investigated the Gilbert damping constant of the Heusler Co2MnSi(001) films epitaxially grown on a MgO(100) substrate by a ferromagnetic resonance technique. The angular variation in resonance field in the in-plane geometry exhibited a maximum when the field was applied parallel to the [110] direction (easy axis), and its relative minimum corresponded to the $\mathrm{H}\parallel[100]$ hard axis. Experimental results were fitted with theoretical results; the $g$-value, effective magnetization and anisotropy constants were determined. The magneto-crystalline anisotropy of the films decreased after the films were post-annealed at 400 °C. The Gilbert damping parameter was anisotropic and had a minimum value at 300 °C.

収録刊行物

  • Japanese journal of applied physics. Pt. 2, Letters  

    Japanese journal of applied physics. Pt. 2, Letters 46(9), L205-L208, 2007-03-25 

    Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018903093
  • NII書誌ID(NCID)
    AA10650595
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    0021-4922
  • NDL 記事登録ID
    8695393
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z54-J337
  • データ提供元
    CJP書誌  NDL  JSAP 
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