(Fe, Co)-Mg-Oナノグラニュラー軟磁性膜の誘導磁気異方性

概要

論文の詳細を見る
The magnetic anisotropy induced by magnetic annealing was investigated for soft magnetic (Fe, Co)-Mg-O geanular films prepared by the RF sputter-deposition method. A large uniaxial magnetic anisotropy (2×10^4 erg/cc) was found in the (Co_<.94>Fe_<.06>)_<64>Mg_<15>O_<21> film, whereas a small anisotropy(2×10^3 erg/cc) was observed in the Fe_<67>Mg_<13>O_<20> film. Following transverse annealing with a 90° rotation of the magnetic anisotropy. the directions of a uniaxial magnetic anisotropy can be switched almost reversibly to parallel the magnetic field direction. The uniaxial magnetic anisotropy decreases, disappears, and then reappears at the direction of the magnetic field. The results suggest that the induced magnetic anisotropy is not attributable to obvious microstructural changes during film growth and annealing.
社団法人日本磁気学会の論文
2000-04-15