• DocumentCode
    1030509
  • Title

    A combined transverse/polar Kerr-effect system for magnetic measurements on Co-Cr perpendicular orientation on computer discs

  • Author

    Mapps, D.J. ; Mahvan, N. ; Warner, S.

  • Author_Institution
    Plymouth Polytechnic, Plymouth, U.K.
  • Volume
    23
  • Issue
    5
  • fYear
    1987
  • fDate
    9/1/1987 12:00:00 AM
  • Firstpage
    2590
  • Lastpage
    2592
  • Abstract
    This paper describes a Kerr magneto-optic effect apparatus for measuring in-plane and perpendicular magnetic properties of Co-Cr coated computer discs. A combined differential amplifier, phase-sensitive detector technique was used to achieve a signal-to-noise ratio of 46 dB in the perpendicular system. Comparisons are made with v.s.m. measurements and results presented for 5.25" Winchester discs.
  • Keywords
    Magnetic measurements; Magnetooptic Kerr effect; Perpendicular magnetic recording; Aluminum; Laser beams; Magnetic analysis; Magnetic properties; Magnetic variables measurement; Magnetooptic effects; Optical films; Perpendicular magnetic recording; Phase detection; Winches;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1987.1065599
  • Filename
    1065599
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1030509