In1-xAlxAs/GaAs一维超点阵结构的X射线衍射和Raman散射研究

应用科学学报 ›› 2000, Vol. 18 ›› Issue (1): 27-31.

In_1-xAl_xAs/GaAs一维超点阵结构的X射线衍射和Raman散射研究

杨传铮

上海大学物理系, 上海 200436

收稿日期:1998-10-15 修回日期:1999-02-01 出版日期:2000-03-31 发布日期:2000-03-31
作者简介:杨传铮(1939-),男(侗族),湖南新晃人,副研究员.

Research on One-dimensional Superlattice Structure of In_1-xAl_xAs/GaAs by X-ray Diffraction and Raman Scattering

YANG Chuan-zheng

Department of Physics, Shanghai University, Shanghai 200436, China

Received:1998-10-15 Revised:1999-02-01 Online:2000-03-31 Published:2000-03-31

摘要/Abstract

摘要： 用同步辐射和CuKα X射线衍射方法对In_1-xAl_xAs/GaAs一维超点阵结构进行对比式研究.从低角衍射数据求得超点阵的周期Λ,由GaAs(002)附近衍射数据求得各结构参数.对两种光源的衍射结果进行了分析和比较.解释了该超点阵的Raman散射谱,发现在Ga_1-xAl_xAs混晶谱中不存在的275cm^-1峰.

关键词: X射线衍射, 一维超点阵, Raman散射

Abstract: One-dimensional superlattice structure of In_1-x Al_xAs/GaAs has been comparatively researched by X-ray diffraction method from synchrotron radiation and CuKα radiation. The superlattice structural period Λ,and refraction index n are calculated from low angle X-ray diffraction data. The superlattice structural parameters have been determined from high angle X-ray diffraction data. The results from two X-ray sources have been compared and discussed. Raman scattering spectrum of this one-dimensional superlattice has been interpreted and 275cm^-1 peak which is absent in Ga_1-x Al_xAs/GaAs system has been found.

Key words: one-dimensional superlattice, X-ray diffraction, Raman scattering

中图分类号:

O484.1

杨传铮. In_1-xAl_xAs/GaAs一维超点阵结构的X射线衍射和Raman散射研究[J]. 应用科学学报, 2000, 18(1): 27-31.

YANG Chuan-zheng. Research on One-dimensional Superlattice Structure of In_1-xAl_xAs/GaAs by X-ray Diffraction and Raman Scattering[J]. Journal of Applied Sciences, 2000, 18(1): 27-31.

[1]	郭荣, 严鹏权, 朱霞石, 沈明. 短链醇层状液晶及其结构与稳定性[J]. 应用科学学报, 1994, 12(3): 233-238.
[2]	欧阳毅, 解希顺. 聚丙烯驻极体电荷内衰减过程分析[J]. 应用科学学报, 1994, 12(2): 109-112.
[3]	钟福民, 陈京一, 朱南昌, 李杰, 袁诗鑫. (CdTe-ZuTe)/ZnTe/GaAs(100)超晶格结构的X射线测定[J]. 应用科学学报, 1993, 11(4): 333-336.
[4]	钟福民, 陈京一. In_xGa_1-xAs/GaAs超晶格的X射线衍射研究[J]. 应用科学学报, 1991, 9(2): 185-188.