• DocumentCode
    1031806
  • Title

    Mössbauer study of the oxides layer formed on the surface of acicular iron particles

  • Author

    Kitahata, S. ; Kishimoto, M. ; Amemiya, M.

  • Author_Institution
    Hitachi Maxell Ltd., Kyoto, Japan
  • Volume
    23
  • Issue
    5
  • fYear
    1987
  • fDate
    9/1/1987 12:00:00 AM
  • Firstpage
    2818
  • Lastpage
    2819
  • Abstract
    The structure of the iron oxides layer formed on the surface of acicular iron particles is investigated by means of Mössbauer absorption measurements using a sample of which surface is made of enriched57Fe. The iron oxides layer consists of ferrimagnetic Fe3O4and superparamagnetic Fe3O4at 300 K. The superparamagnetic region of Fe3O4diminishes below about 110 K. The volume ratio of the ferrimagnetic region to the superparamagnetic region of Fe3O4is calculated to be about 7:3 at 300 K.
  • Keywords
    Magnetic recording; Mossbauer spectroscopy; Absorption; Coercive force; Crystalline materials; Electrons; Ferrimagnetic materials; Hydrogen; Iron; Particle measurements; Saturation magnetization; Spectroscopy;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1987.1065716
  • Filename
    1065716
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1031806