ZnTe/Zn_(1-x)Mn_xTe超晶格的喇曼散射  

RAMAN SCATTERING IN ZnTe/Zn 1- x Mn x Te SUPERLATTICE

作　　者：陈唏[1,2] 李晓莅[1,2] 刘继周 王晶晶[1] 周赫田 王学忠[1] 陈辰嘉[1] 凌震[3] 王杰[3] 王迅[3] 孔祥贵[2,4] 

机构地区：[1]北京大学物理系 [2]中国科学院激发态物理开放实验室 [3]复旦大学应用表面物理实验室 [4]中国科学院长春物理所

出　　处：《红外与毫米波学报》1997年第2期102-106,共5页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金

摘　　要：在１３～３００Ｋ温度下研究了稀磁半导体ＺｎＴｅ／Ｚｎ１－ｘＭｎｘＴｅ超晶格的喇曼散射，观测到多个声子喇曼峰．在近共振条件下，峰的强度增强，线宽显著变窄，并观测到更多不同声子组合的喇曼散射峰．计算和分析了超晶格中应力引起的声子频移，与实验结果一致．Raman experiments were performed in a temperature range of 13～300K for the diluted magnetic semiconductor ZnTe/Zn 1- x Mn x Te superlattice . Multi phonon spectra were observed. In near resonant condition, the intensities of Raman lines were increased and their FWHM narrowed significantly and more Raman lines were observed. The frequency shifts induced by the strain effect were calculated and compared with the experimental results.The interface mode (IF) was observed and assigned.

关 键 词：超晶格 喇曼散射 界面模 半导体 碲化锌 

分 类 号：TN304.22[电子电信—物理电子学] O471.4[理学—半导体物理]