• DocumentCode
    1413792
  • Title

    Numerical simulations of the effect of record field pulse length on medium coercivity at finite temperatures

  • Author

    Bertram, H. Neal ; Peng, Qingzhi

  • Author_Institution
    Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
  • Volume
    34
  • Issue
    4
  • fYear
    1998
  • fDate
    7/1/1998 12:00:00 AM
  • Firstpage
    1543
  • Lastpage
    1545
  • Abstract
    Thin film media under consideration for high density recording in the range of 5 Gbit/in2 and beyond will utilize extremely small grains in order to achieve acceptable signal-to-noise ratio limits. Numerical simulations of the reversal process including thermal fluctuations are utilized to determine medium coercivity versus field duration. Typically media with grain diameter 10 nm will have a 23% decrease in coercivity over a 1-100 nsec range
  • Keywords
    coercive force; grain size; magnetic recording; magnetic recording noise; magnetic thin films; acceptable signal-to-noise ratio limits; extremely small grains; finite temperatures; high density recording; medium coercivity; record field pulse length; reversal process; thermal fluctuations; Anisotropic magnetoresistance; Coercive force; Fluctuations; Grain size; Magnetic films; Magnetic recording; Magnetization; Numerical simulation; Pulse measurements; Signal to noise ratio;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.706609
  • Filename
    706609
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1413792