• DocumentCode
    957418
  • Title

    Thermomagnetic writing in Gd-Co sputtered films

  • Author

    Matsushita, S. ; Sunago, K. ; Sakurai, Y.

  • Author_Institution
    University of Osaka, Toyonaka, Osaka, Japan
  • Volume
    11
  • Issue
    5
  • fYear
    1975
  • fDate
    9/1/1975 12:00:00 AM
  • Firstpage
    1109
  • Lastpage
    1111
  • Abstract
    A model for thermomagnetic writing in Gd-Co sputtered films at its compensation temperature is described. In the vicinity of the compensation temperature, the films have rectangular hysteresis loops with large values of coercive force. Spots are thermomagnetically written and erased by using a He-Ne laser in conjunction with an external magnetic field, and a diameter approximately of 1.5 \\sim 2 \\mu m is achieved. Photographs of spots written thermomagnetically are shown. The written domains are circular and clear in shape, and are stable. Temperature dependences of coercive force in Gd-Co sputtered films, and characters of spot diameter as a function of applied magnetic field and writing laser power are reported.
  • Keywords
    Magnetooptic memories; Coercive force; Laser beams; Magnetic anisotropy; Magnetic field measurement; Magnetic fields; Magnetic films; Magnetic hysteresis; Perpendicular magnetic anisotropy; Temperature measurement; Writing;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1975.1058947
  • Filename
    1058947
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=957418