• DocumentCode
    766046
  • Title

    Asymmetric Magnetization Reversal in IrMn/CoFe/FeO \\rm _ X /CoFe Structures

  • Author

    Hsu, Po-Ching ; Lai, Chih-Huang ; Huang, Po-Hsiang ; Shen, Chih-Ta ; Wang, Yung-Hung

  • Author_Institution
    Dept. of Mater. Sci. & Eng., Nat. Tsing Hua Univ., Hsinchu
  • Volume
    42
  • Issue
    10
  • fYear
    2006
  • Firstpage
    2978
  • Lastpage
    2980
  • Abstract
    We analyzed anisotropy in IrMn/CoFe/FeOX/CoFe multilayers with angular remanence measurements. The results showed the coexistence of biquadratic and unidirectional anisotropies. A significantly asymmetric magnetization reversal had been observed. We studied the reversal mechanism by using vector coils and suggested that the switching in the decreasing branch comprised both coherent rotation and 90deg domain wall motion; however, the switching in the increasing branch showed complicated multidomain rotation
  • Keywords
    cobalt alloys; iridium alloys; iron alloys; magnetic anisotropy; magnetic domain walls; magnetic multilayers; magnetisation reversal; manganese alloys; remanence; IrMn-CoFe-FeOx-CoFe; NOL; angular remanence measurements; asymmetric magnetization reversal; biquadratic anisotropies; complicated multidomain rotation; domain wall motion; exchange bias; magnetic multilayers; nanooxide layer; unidirectional anisotropies; vector coils; Anisotropic magnetoresistance; Couplings; Electronics industry; Industrial electronics; Magnetic analysis; Magnetic anisotropy; Magnetic field measurement; Magnetization reversal; Perpendicular magnetic anisotropy; Saturation magnetization; Asymmetry; FeO; biquadratic anisotropy; exchange bias; magnetization reversal; nano-oxide layer (NOL);
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2006.878413
  • Filename
    1704502
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=766046