| In1-xAlxAs/GaAs一维超点阵结构的X射线衍射和Raman散射研究 |
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| 引用本文： | 杨传铮.In1-xAlxAs/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. |
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| 作者姓名： | 杨传铮 |
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| 作者单位： | 上海大学物理系, 上海 200436 |
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| 摘 要： | 用同步辐射和CuKα X射线衍射方法对In1-xAlxAs/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Ga1-xAlxAs混晶谱中不存在的275cm-1峰.
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| 关 键 词： | X射线衍射 一维超点阵 Raman散射 |
| 收稿时间： | 1998-10-15 |
| 修稿时间： | 1999-02-01 |
Research on One-dimensional Superlattice Structure of In1-xAlxAs/GaAs by X-ray Diffraction and Raman Scattering |
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| YANG Chuan-zheng.Research on One-dimensional Superlattice Structure of In1-xAlxAs/GaAs by X-ray Diffraction and Raman Scattering[J].Journal of Applied Sciences,2000,18(1):27-31. |
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| Authors: | YANG Chuan-zheng |
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| Institution: | Department of Physics, Shanghai University, Shanghai 200436, China |
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| Abstract: | One-dimensional superlattice structure of In1-x AlxAs/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 Ga1-x AlxAs/GaAs system has been found. |
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| Keywords: | one-dimensional superlattice X-ray diffraction Raman scattering |
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