Cd_（1－x）Mn_xTe的巨大法拉第旋转与激子跃迁  

Giant Faraday Rotation and Exciton Transition in Semimagnetic Semiconductor Cd_(1-x)Mn_xTe

作　　者：王学忠[1] 马可军[2] W.Giriat 陈辰嘉[1] 王荣明[1] 阎志成[1] 

机构地区：[1]北京大学物理系 [2]中国科学院上海技术物理研究所

出　　处：《Journal of Semiconductors》1994年第5期333-338,共6页半导体学报（英文版）

基　　金：国家自然科学基金

摘　　要：在８０Ｋ－３５０Ｋ温度范围内测量研究了组分ｘ＝０．１、０．２、０．３、０．４、０．４５、０．５、０．６、０．７的Ｃｄ１－ｘＭｎｘＴｅ系列样品的法拉第旋转随入射光子能量、组分和温度的变化规律．用单振子模型拟合实验结果，给出了激子能量随组分和温度的变化规律．本文还讨论了锰离子内能级间跃迁对高组分样品中法拉第效应的影响．Abstract Faraday rotation as a function of photon energy, composition and te-mperature has been measured and studied for Cd1-xMnxTe with x= 0. 1,0.2,0.3,0.4.0.45,0.5,0.6,0.7 in the temperature range of 80K≤T≤350K. Exciton energy as a function of composition and temperature is obtained by using a single oscillator model fitting with experiment results. For large x, the effects of the Mn2+ ions intraband transition on Faraday rotation are also discussed.

关 键 词：法拉第效应 半磁半导体 半导体材料 

分 类 号：TN304[电子电信—物理电子学]