• DocumentCode
    1018360
  • Title

    Magnetic properties of amorphous FeCo base ultrafine particles

  • Author

    Ohnuma, S. ; Nakanouchi, Y. ; Graham, C.D., Jr. ; Masumoto, T.

  • Author_Institution
    The Research Institute of Electric and Magnetic Alloys, Sendai, Japan
  • Volume
    22
  • Issue
    5
  • fYear
    1986
  • fDate
    9/1/1986 12:00:00 AM
  • Firstpage
    1098
  • Lastpage
    1100
  • Abstract
    RF sputter deposition of (FeCo)80B20onto a sputter-etched polyimide substrate produces a dense array of elongated finger-like projections of amorphous ferromagnetic material, with diameters less than 1000 Å and aspect ratio about 4. These particles, which we call ultrafine amorphous particles, have a magnetic easy axis perpendicular to the substrate. The coercive field and magnetic anisotropy depend strongly on the Fe/Co ratio and also on the annealing conditions. A maximum coercive field of almost 1200 Oe is obtained for (Fe0.4Co0.6)80B20particles annealed at about 500°C. After this treatment the particles are crystalline.
  • Keywords
    Amorphous magnetic films/devices; Amorphous magnetic materials; Amorphous materials; Annealing; Iron; Magnetic anisotropy; Magnetic materials; Magnetic properties; Polyimides; Radio frequency; Sputtering;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1986.1064516
  • Filename
    1064516
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1018360