• DocumentCode
    2944731
  • Title

    Incoherent Reversal in Metal Particle Media

  • Author

    Chadwick, S.J. ; Grady, K.O.

  • Author_Institution
    York Univ., York
  • fYear
    2006
  • fDate
    8-12 May 2006
  • Firstpage
    640
  • Lastpage
    640
  • Abstract
    In this paper reports, the magnetisation reversal in ultra-fine elongated metal particles is incoherent. The six metal particle tapes with TEM imaging and magnetic measurement is studied. The activation volume of reversal (Vact) and the physical particle volume (Vphys ) have been determined to establish how the size and geometry of the particles affects the magnetisation reversal. Vact is defined as the smallest volume that reverses coherently. The particles have uniaxial shape anisotropy, which gives them a high coercivity.
  • Keywords
    coercive force; magnetic anisotropy; magnetisation reversal; particle size; transmission electron microscopy; TEM imaging; activation volume; high coercivity; incoherent magnetisation reversal; magnetic measurement; metal particle tapes; particle size; physical particle volume; ultra-fine elongated metal particles; uniaxial shape anisotropy; Coercive force; Force measurement; Hafnium; Jacobian matrices; Magnetic field measurement; Magnetization reversal; Physics; Pigments; Switches; Time measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Magnetics Conference, 2006. INTERMAG 2006. IEEE International
  • Conference_Location
    San Diego, CA
  • Print_ISBN
    1-4244-1479-2
  • Type

    conf

  • DOI
    10.1109/INTMAG.2006.376364
  • Filename
    4262073
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2944731