1995 年 19 巻 3 号 p. 712-716
To study the magnetic behavior in a perpendicular magnetic film, the magnetic energy density of the film is calculated on the assumption that the film is a three-dimensional array of ferromagnetic blocks. From the energy density, MH loop, the angular dependence of the coercive force He and the anisotropy field HK are calculated for the fanning and parallel rotation mechanisms. It is found that Hkf>Hcp>Hcf>Hkp,where f and p denote the fanning and parallel rotation mechanisms, respectively. These results for the fanning mode agree with many previous experimental results.