| 半导体超晶格中的有效弹性模量 |
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| 引用本文： | 熊小明,陶瑞宝.半导体超晶格中的有效弹性模量[J].物理学报,1988,37(7):1110-1118. |
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| 作者姓名： | 熊小明 陶瑞宝 |
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| 作者单位： | 复旦大学物理系 |
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| 摘 要： | 在长弹性波近似下,利用双时格林函数的处理方法,得到了GaAs-GaAlAs型半导体超晶格的有效弹性模量。从所得结果发现有效弹性系数总是不大于组成超晶格的两种介质的弹性系数的平均值。在其中一种介质的宽度b=0和b=a(a为超晶格周期)的极限情况下,所得结果退化为单一介质的弹性模量。
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| 收稿时间： | 1987-10-12 |
EFFECTIVE ELASTIC CONSTANT OF THE SEMICONDUCTOR SUPERLATTICE |
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| XIONG XIAO-MING and TAO RUI-BAO.EFFECTIVE ELASTIC CONSTANT OF THE SEMICONDUCTOR SUPERLATTICE[J].Acta Physica Sinica,1988,37(7):1110-1118. |
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| Authors: | XIONG XIAO-MING and TAO RUI-BAO |
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| Abstract: | The effective elastic constant of the GaAs-GaAlAs kind semiconductor superlattice has been obtained by means of the mathod of Green's function in the long Wave approximation. The results show that the effective elastic constant is not greater than that of either kind of the matter which are the components of the superlattice. In the limit of b = 0 and b = a, where a is the period of the superlattice and b is the width of one of the component, the te-sult reduces to the elastic constant of one single medium. |
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