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应变异质结外延材料的缓冲层厚度与Frank-Read源的关系研究
Authors
王占国
范缇文
邹吕凡
Publication date
1 January 1996
Publisher
Abstract
基于能量最小近似模型,研究了应变异质结外延材料中,产生Frank-Read源以释放失配应力所需GeSi合金缓冲层的厚度。对Ge_xSi_(1-x)/Si进行了具体计算,其结果表明:产生Frank-Read源时缓冲层厚度要比临界厚度大得多,L_(min)=1300A是钉扎点间的最小距离。计算结果与LeGoues等的实验结果相符。就作者所知,计算产生Frank-Read源时GeSi合金缓冲层厚度的工作,以前未见报道
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Last time updated on 15/03/2019