• DocumentCode
    789866
  • Title

    Temperature dependence of magnetic properties in Fe-Co and Fe-Cr base nanocrystalline alloys

  • Author

    Gómez-Polo, C. ; Pérez-Landazabal, J.I. ; Recarte, V.

  • Author_Institution
    Dept. Fisica, Univ. Publica de Navarra, Pamplona, Spain
  • Volume
    39
  • Issue
    5
  • fYear
    2003
  • Firstpage
    3019
  • Lastpage
    3024
  • Abstract
    The temperature dependence of the magnetic properties (i.e., ac magnetic permeability and magnetoimpedance voltage) is analyzed for Fe-Co and Fe-Cr base nanocrystalline materials. Around the Curie point of the residual amorphous matrix a magnetic transition is detected, associated with the magnetic decoupling of ferromagnetic crystallites. The magnetic nature of such magnetic transition is analyzed within the framework of the random anisotropy model, taking into account the basic structural and magnetic characteristics of the constituent magnetic phases.
  • Keywords
    Curie temperature; boron alloys; chromium alloys; cobalt alloys; copper alloys; crystallisation; differential scanning calorimetry; exchange interactions (electron); ferromagnetic materials; iron alloys; magnetic anisotropy; magnetic permeability; magnetoresistance; nanostructured materials; neutron diffraction; niobium alloys; silicon alloys; soft magnetic materials; 300 to 973 K; Curie point; Fe-Co base nanocrystalline alloys; Fe-Cr base nanocrystalline alloys; Fe73.5-xCoxSi13.5B9Cu1Nb3; Fe73.5-xCrxSi13.5B9Cu1Nb3; ac magnetic permeability; crystallization temperature; exchange coupling; ferromagnetic crystallite decoupling; magnetic properties; magnetic transition; magnetoimpedance voltage; random anisotropy model; residual amorphous matrix; room temperature neutron diffraction; soft magnetic properties; temperature dependence; Amorphous magnetic materials; Magnetic analysis; Magnetic anisotropy; Magnetic materials; Magnetic properties; Nanostructured materials; Permeability; Perpendicular magnetic anisotropy; Temperature dependence; Voltage;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2003.815877
  • Filename
    1233292