• DocumentCode
    847738
  • Title

    Magnetic and structural properties of quaternary (Fe-Co-Ni)50Pt50 alloy thin films

  • Author

    Suzuki, Takao ; Kanazawa, Hiroshi ; Sakuma, Akimasa

  • Author_Institution
    Inforniation Storage Mater. Lab., Toyota Technol. Inst., Nagoya, Japan
  • Volume
    38
  • Issue
    5
  • fYear
    2002
  • fDate
    9/1/2002 12:00:00 AM
  • Firstpage
    2794
  • Lastpage
    2795
  • Abstract
    The intrinsic perpendicular magnetic anisotropy constant Ku for (Fe-Co-Ni)50Pt50 quaternary alloy and (Fe-Cr)50Pt50 alloy thin films is discussed as a function of structure and composition. Both Ms and the estimated Ku values obtained by the extrapolation to order parameter S = 1 using the dependence of Ku on S become maximum at the valence electron number nelect = 8, being independent of alloy system. The magnetic anisotropy is determined to the first approximation by the Fermi energy, which changes with the number of electrons, but not by the band structure itself.
  • Keywords
    Fermi level; cobalt alloys; electron beam deposition; ferromagnetic materials; iron alloys; magnetic thin films; magnetisation; nickel alloys; perpendicular magnetic anisotropy; platinum alloys; (Fe-Co-Ni)50Pt50; (Fe-Cr)50Pt50; (Fe-Cr)50Pt50 alloy thin films; Fermi energy; composition; electron beam evaporation; intrinsic perpendicular magnetic anisotropy constant; magnetic properties; order parameter; quaternary (Fe-Co-Ni)50Pt50 alloy thin films; saturation magnetization; structural properties; valence electron number; Cobalt alloys; Electrons; Iron alloys; Magnetic anisotropy; Magnetic films; Magnetic materials; Magnetic properties; Perpendicular magnetic anisotropy; Platinum alloys; Substrates;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2002.803103
  • Filename
    1042362
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=847738