Elastic energy of strained islands: Contribution of the substrate as a function of the island aspect ratio and inter-island distance
作者:
A. Ponchet,
D. Lacombe,
L. Durand,
D. Alquier,
J.-M. Cardonna,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 23
页码: 2984-2986
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.121515
出版商: AIP
数据来源: AIP
摘要:
The finite element method is applied to strain-induced islands. The distribution of the elastic energy in the island and the substrate is determined as a function of the island aspect ratio and inter-island distance. When the height-over-base ratio increases, the total elastic energy density decreases and the relative contribution of the substrate increases. When the inter-island distance decreases, the elastic energy density increases and the relative contribution of the substrate decreases. The influence of the aspect ratio on the relaxation rate is amplified for short inter-island distances. ©1998 American Institute of Physics.
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