• DocumentCode
    794195
  • Title

    Stress Induced Magnetic Anisotropy of YBi2Fe5-xGaxO12 Sputtered Films

  • Author

    Kigami, Y. ; Namikawa, T. ; Yamazaki, Y.

  • Author_Institution
    Tokyo Institute of Technology.
  • Volume
    5
  • Issue
    4
  • fYear
    1990
  • fDate
    4/1/1990 12:00:00 AM
  • Firstpage
    319
  • Lastpage
    324
  • Abstract
    In order to study the origin of perpendicular magnetic anisotropy in Bi-substituted iron garnet thin films, a series of samples with composition YBi2Fe5-xGaxO12 (0.36/≪x/≪0.97) was prepared by rf sputtering onto several substrates with various thermal expansion coefficients. The stress (¿) was calculated from the difference in thermal expansion of the film and substrate. The anisotropy constant (Ku) of the films increased linearly with ¿ in the range from ¿ = ¿9.0×109 erg/cm3 to 3.0×109 erg/cm3. The Ku decreased linearly with x in the composition range studied. The experimental results are discussed and compared with results for Al-substituted films.
  • Keywords
    Magnetic anisotropy; Magnetic films; Magnetic materials; Optical films; Perpendicular magnetic anisotropy; Sputtering; Substrates; Tensile stress; Thermal expansion; Thermal stresses;
  • fLanguage
    English
  • Journal_Title
    Magnetics in Japan, IEEE Translation Journal on
  • Publisher
    ieee
  • ISSN
    0882-4959
  • Type

    jour

  • DOI
    10.1109/TJMJ.1990.4564122
  • Filename
    4564122
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=794195