抄録
A basic model was developed for 3-dimensional analyses of the magnetic recording and reproducing processes. The curling magnetization reversal model used in our conventional 2-dimensional simulator was improved to calculate the 3-dimensional direction of a megnetization vector in a recoding medium. To consider the nonlinearity of a soft magnetic material, a recording head and an unser-layer of a Co-Cr/Ni-Fe double-layered medium were modeled by arctan function M-H loops. The magnetic field distribution was calculated by the magnetic charge distribution in both head and medium. The 3-dimensional distribution of the SPT head field was investigated when the head was combined with a Co-Cr/Ni-Fe double-layered medium.
