红外与毫米波学报2001，Vol.20Issue(1)：33-36,4.
GaAs衬底上Mn/Sb多层铁磁膜的磁光克尔效应
MAGNETO-OPTICAL KERR EFFECT OF Mn/Sb MULTILAYER FERROMAGNETIC FILMS ON GaAs SUBSTRATE
摘要
Abstract
Mn/Sb multilayer films were grown on (100) GaAs substrate by an ultrahigh vacuum evaporation system and were annealed for a sho rt time. The magnetic and magneto-optical properties were investigated for the samples unannealed and annealed, respectively. All unannealed Mn/Sb multilayer f ilms exhibit strong ferromagnetic properties and the easy magnetization axes are in-plane. The surface of the samples consists of dense islands. The longitudin al (H∥ plane) Kerr effect was not observed for the unannealed samples. All samples annealed at 350℃ for 20min were found to be single phase with nickel ar senide (NiAs) crystal structure and have the largest saturation magnetization Ms and the lowest coercive force Hc. The magnetic force microscope ima ge shows uniform ferromagnetic properties of the film. The longitudinal magneto -optical Kerr effect was observed. The observable Kerr effect hysteresis loop c an be obtained for the annealed Mn/Sb multilayer films on GaAs.关键词
薄膜/退火/铁磁性/磁光克尔效应引用本文复制引用
王学忠,蔡明,陈辰嘉,孙允希,孙亨,张毓英..GaAs衬底上Mn/Sb多层铁磁膜的磁光克尔效应[J].红外与毫米波学报,2001,20(1):33-36,4.基金项目
国家自然科学基金(编号19874005)资助项目 （编号19874005）
