• DocumentCode
    936088
  • Title

    Effects of applied field inhomogeneities on the magnetization reversal of elongated γ-Fe2O3 particles

  • Author

    Schabes, Manfred E. ; Bertram, H. Neal

  • Author_Institution
    Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
  • Volume
    25
  • Issue
    5
  • fYear
    1989
  • fDate
    9/1/1989 12:00:00 AM
  • Firstpage
    3662
  • Lastpage
    3664
  • Abstract
    A detailed micromagnetic study of the effects of nonuniform applied fields in elongated particles is given. As a representative case the magnetization reversal is studied in the presence of a recording head field. The investigation is restricted to an important subproblem: the single particle in an inhomogeneous applied field. This case is also interesting with regard to the development of ultrahigh-density recording systems. Reversible and irreversible magnetization processes are computed for the limit of small and large exchange coupling. Results are presented for both longitudinal and perpendicular media
  • Keywords
    iron compounds; magnetic heads; magnetic properties of fine particles; magnetic recording; magnetisation reversal; Fe2O3; applied field inhomogeneities; elongated particles; exchange coupling; irreversible magnetization; longitudinal media; magnetization reversal; micromagnetic study; nonuniform applied fields; perpendicular media; recording head field; reversible magnetization; ultrahigh-density recording systems; Anisotropic magnetoresistance; Couplings; Magnetic heads; Magnetic recording; Magnetization processes; Magnetization reversal; Mathematical model; Micromagnetics; Perpendicular magnetic recording; Saturation magnetization;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.42396
  • Filename
    42396
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=936088