• DocumentCode
    959637
  • Title

    Ferrite thin films for high recording density

  • Author

    Inagaki, N. ; Hattori, S. ; Ishii, Y. ; Terada, A. ; Katsuraki, H.

  • Author_Institution
    Nippon Telegraph and Telephone Public Corporation, Tokai, Ibaraki, Japan
  • Volume
    12
  • Issue
    6
  • fYear
    1976
  • fDate
    11/1/1976 12:00:00 AM
  • Firstpage
    785
  • Lastpage
    787
  • Abstract
    Ferrite thin films with superior mechanical and magnetic properties for a magnetic disk medium have been obtained using reactive sputtering. Recording characteristics of these films considerably exceed those of a conventional γ-Fe2O3coating medium. Hematite thin films were produced on an aluminium alloy substrate by sputtering Fe-Al-Co alloy target in an atmosphere of mixed argon and oxygen. Hematite films were transformed to ferrite films by reduction in hydrogen atmosphere for 2-4 hours at 300°C. The substrate used was covered with a thin alumite layer formed by anodic oxidation to improve surface hardness.
  • Keywords
    Ferrites; Magnetic disk recording; Magnetic films; Sputtering; Aluminum alloys; Argon; Atmosphere; Coatings; Disk recording; Ferrite films; Magnetic films; Magnetic properties; Magnetic recording; Sputtering;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1976.1059174
  • Filename
    1059174
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=959637