本文报道用表面效应(光电子能谱,极克尔效应)和体效应(磁化强度,矩曲线)研究稀土-过渡族金属(RE-TM)非晶态磁光薄膜表面氧化的物理过程。稀土选择性氧化,在薄膜表面富集,过渡族金属在氧化层内贫乏。表面氧化层内的Fe_2O_3对平面磁化有贡献,且在转矩曲线上180°处出现异常峰,其峰值大小和表面氧化层深度有关。铁比钴容易和氧结合,RE-Co磁光薄膜有奸的抗湿抗氧性能。 In this paper, the physical processes of surface oxidation of rare earth-transition metal (RE-TM) amorphous magneto-optical thin films were investigated by surface effect (photoelectron spectroscopy, polar Kerr effect) and bulk effect (magnetization, moment curve) Selective oxidation of rare earth, enrichment in the film surface, the transition metal in the oxide depletion. Fe_2O_3 in the surface oxide layer contributes to planar magnetization, and anomalous peaks appear at 180 ° on the torque curve. The peak value is related to the surface oxide depth. Iron is easier to combine with oxygen than cobalt, and RE-Co magneto-optical film has anti-wet and anti-oxidation properties.