• DocumentCode
    1529897
  • Title

    Thermal stability of written bits in high density magneto-optical recording media

  • Author

    Mochida, Mitsunori ; Birukawa, Masahiro ; Suzuki, Takao

  • Author_Institution
    Toyota Technol. Inst., Nagoya, Japan
  • Volume
    37
  • Issue
    4
  • fYear
    2001
  • fDate
    7/1/2001 12:00:00 AM
  • Firstpage
    1396
  • Lastpage
    1398
  • Abstract
    Masurements of magnetic domains in TbFeCo films currently used as magneto-optical recording media indicate a shrinkage in domain size under accelerated conditions. A criterion factor (Ea/kT) for thermal stability is found to be about 40 for domains with a diameter of about 0.8 μm, where Ea is an activation energy estimated on the basis of Arrenhius plot of the shrinkage with time. For high density recording applications, a higher wall pinning field is necessary
  • Keywords
    cobalt alloys; iron alloys; magnetic domain walls; magnetic thin films; magneto-optical recording; terbium alloys; thermal stability; Arrenhius plot; TbFeCo; TbFeCo film; activation energy; high-density magneto-optical recording; magnetic domain size; mark length; thermal stability; wall pinning field; written bits; Acceleration; Amorphous magnetic materials; Length measurement; Magnetic domain walls; Magnetooptic recording; Optical recording; Perpendicular magnetic recording; Pulse measurements; Space vector pulse width modulation; Thermal stability;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.950852
  • Filename
    950852
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1529897