• DocumentCode
    71334
  • Title

    Microstructure and Magnetic Properties of FePt–Cr2O3 Films

  • Author

    Shiroyama, Taisuke ; Varaprasad, Bollapragada S. D. C. S. ; Takahashi, Yukiko K. ; Hono, Kazuhiro

  • Author_Institution
    Nat. Inst. for Mater. Sci., Tsukuba, Japan
  • Volume
    50
  • Issue
    11
  • fYear
    2014
  • fDate
    Nov. 2014
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    We have studied the microstructures and magnetic properties of FePt with various metal oxides, to achieve an ideal media structure on glass substrates for thermally assisted magnetic recording. Unlike FePt-C granular films, FePt-MxOy(M = Ti, Nb, W, Zr, and Al) granular films showed an interconnected in-plane microstructure and low coercivity. However, the usage of Cr2O3 as a segregant leads to very fine columnar granular structure, while there is still room for improvement in coercivity.
  • Keywords
    chromium compounds; coercive force; granular materials; iron alloys; magnetic thin films; platinum alloys; FePt-Cr2O3; SiO2; coercivity; columnar granular structure; glass substrates; granular films; interconnected in-plane microstructure; magnetic properties; thermally assisted magnetic recording; Anisotropic magnetoresistance; Coercive force; Glass; Grain size; Heat-assisted magnetic recording; Microstructure; FePt; granular film; heat-assisted magnetic recording (HAMR);
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2014.2321615
  • Filename
    6971612
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=71334