GaAs/SrTiO_3 MBE外延单晶薄膜晶格振动的研究  

STUDY OF THE CRYSTAL-LATTICE-VIBRATION OF THE GaAs SINGLE-CRYSTAL FILM ON SrTiO_3 (001) SUBSTRATE BY MBE

作　　者：陈益栋[1] 刘兴权[1] 李志锋[1] 陆卫[1] 沈学础[1] 

机构地区：[1]中国科学院上海技术物理研究所,中国科学院红外物理国家实验室,上海200083

出　　处：《红外与毫米波学报》2000年第3期185-187,共3页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金!(编号 :697760 1 8);国家攀登计划资助项目&&

摘　　要：利用远红外反射光谱和拉曼散射光谱法测量了 Ga As/ Sr Ti O3外延单晶薄膜样品 ,研究了这种新型异质结构的晶格振动光学特性 .实验结果表明 :在钙钛矿型结构的 Sr Ti O3衬底上外延生长的 Ga As薄膜具有单晶结构 ,有与 GaWith the far IR spectroscopy and Raman scattering spectroscopy, the crystal lattice vibration and optical properties of the GaAs single crystal film on the perovskite oxide SrTiO 3 (001) substrate were studied. The result of the measurement shows that the GaAs film on SrTiO 3 (001) substrate by MBE is a single crystal film and the lattice vibration property of the GaAs single crystal film is similar to that of the GaAs bulk material.

关 键 词：砷化镓 钛酸锶 外延生长 单晶薄膜 晶格振动 

分 类 号：TN304.23[电子电信—物理电子学]