• DocumentCode
    1412849
  • Title

    Superparamagnetism of granular Fe-MgF2 films

  • Author

    Furubayashi, T. ; Nakatani, I.

  • Author_Institution
    Nat. Res. Inst. for Metals, Tsukuba, Japan
  • Volume
    34
  • Issue
    4
  • fYear
    1998
  • fDate
    7/1/1998 12:00:00 AM
  • Firstpage
    1117
  • Lastpage
    1119
  • Abstract
    Magnetic properties of Fe particles, with the size around 2 nm, in granular Fe-MgF2 films were investigated by DC and AC magnetization measurements. Anomalous two cusps appeared in zero-field cooled magnetization and AC susceptibility against temperature. Large nonlinear susceptibility suggests the freezing of moments induced by magnetic interaction between particles
  • Keywords
    ferromagnetic materials; iron; magnesium compounds; magnetic particles; magnetic susceptibility; magnetic thin films; superparamagnetism; AC susceptibility; Fe particles; Fe-MgF2; granular Fe-MgF2 films; large nonlinear susceptibility; magnetic interaction; magnetization measurements; superparamagnetism; zero-field cooled magnetization; Energy barrier; Glass; Iron; Magnetic anisotropy; Magnetic field measurement; Magnetic films; Magnetic susceptibility; Perpendicular magnetic anisotropy; Saturation magnetization; Temperature;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.706394
  • Filename
    706394