稀磁半导体Cd_（1－x）Fe_xTe的磁光光谱  

MAGNETO-OPTICAL PROPERTIES IN DILUTED MAGNETIC SEMICONDUCTOR Cd_(1-x)FexTe

作　　者：王学忠[1] 陈辰嘉[1] 刘安文[1] 王荣明[1] 马可军[1] 

机构地区：[1]北京大学物理系,中国科学院上海技术物理研究所

出　　处：《光谱学与光谱分析》1996年第3期1-6,共6页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金

摘　　要：在７０－３００Ｋ温度范围内测量了组分ｘ为０．０１和０．０４的Ｃｄ１－ｘＦｅｘＴｅ及ＣｄＴｅ的法拉第效应随入射光子能量的变化，首次获得了Ｃｄ１－ｘＦｅｘＴｅ在布里渊区Γ点和Ｌ点的有效ｇ因子及其与温度的关系。给出了Ｆｅ２＋离子与载流子间的ｓｐ－ｄ交换作用常数Ｎ０（β－α）＝（－１．５７±０．０３）ｅＶ。The Faraday effect as a function of photon energy for Cd1-xFexTexTe with x = 0. 01 and 0. 04 in the temperature range of 70 to 300K has been measured. The effective interband g factors at the Γ and L points of the Brillouin zone as a function of temperature were obtained for the first time. The exchange interaction integral N0(β-α) between Fe2+ ions and free carriers was also determined.

关 键 词：稀磁半导体 磁光效应 有效g因子 磁光光谱 

分 类 号：O472.5[理学—半导体物理]