• DocumentCode
    1524183
  • Title

    Effect of anisotropy field magnitude distribution on signal-to-noise ratio

  • Author

    Wei, Don ; Liu, Bo

  • Author_Institution
    Dept. of Mater. Sci. & Technol., Tsinghua Univ., Beijing, China
  • Volume
    33
  • Issue
    5
  • fYear
    1997
  • fDate
    9/1/1997 12:00:00 AM
  • Firstpage
    4381
  • Lastpage
    4384
  • Abstract
    Recording performance is analyzed by a micromagnetic model in two thin film media with different distribution width of the anisotropy field magnitude. With the same Mrδ, the magnetic properties of the two media are almost the same except that the switching slope S* is larger for the medium with narrower distribution. The signal-to-noise ratio (SNR) is calculated for both media versus recording densities. The SNR at recording densities 4800-9000 flux reversals per millimeter is 5-8 dB smaller in the medium with a broad anisotropy magnitude distribution than the SNR in the medium with a sharp distribution
  • Keywords
    magnetic anisotropy; magnetic recording noise; anisotropy field magnitude distribution; micromagnetic model; recording density; signal-to-noise ratio; switching slope; thin film medium; Anisotropic magnetoresistance; Disk recording; Magnetic analysis; Magnetic properties; Magnetic recording; Micromagnetics; Performance analysis; Signal analysis; Signal to noise ratio; Transistors;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.620450
  • Filename
    620450
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1524183