Green's tensors for anisotropic elasticity: Application to quantum dots

被引:52
|
作者
Faux, DA [1 ]
Pearson, GS [1 ]
机构
[1] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
来源
PHYSICAL REVIEW B | 2000年 / 62卷 / 08期
关键词
D O I
10.1103/PhysRevB.62.R4798
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Real-space Green's tensors for the calculation of the strain in systems containing buried quantum dots of arbitrary shape and composition, including the cubic anisotropy of elastic constants, are presented, to the best of our knowledge, for the first time. The Green's tensors an obtained as a series with very good accuracy obtained using the first two terms. The Green's function for the hydrostatic strain is of a simple form and it is shown that the cubic anisotropy leads to a nonzero hydrostatic strain outside a dot. The axial strain is shown to depend on the orientation of the dot in the crystal.
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页码:R4798 / R4801
页数:4
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