Size distributions of quantum islands on stepped substrates

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	Size distributions of quantum islands on stepped substrates
	Liang S (Liang, S.) ; Zhu HL (Zhu, H. L.) ; Wang W (Wang, W.)
刊名	journal of chemical physics
	2009
卷号	131 期号:15 页码:art.no.154704
关键词	CHEMICAL-VAPOR-DEPOSITION
ISSN号	0021-9606
通讯作者	liang, s, chinese acad sci, inst semicond, key lab semicond mat, beijing 100083, peoples r china. 电子邮箱地址: liangsong@red.semi.ac.cn
中文摘要	the size distributions of self-assembled quantum islands on stepped substrates are studied using kinetic monte carlo simulations. it is found that the energy barrier e-sw between the step and the terrace region is the key factor in affecting the size distribution of islands. with small e-sw (<= 0.1 ev), lines of uniform islands can be obtained at relative low surface coverage. as the surface coverage is increased, wirelike islands can be obtained. scaling behavior is obeyed for the size distributions of the wirelike islands. when the size distributions are separated into their width and length components, however, scaling is only observed in the length distribution of the wirelike islands. with larger e-sw, the size distribution of islands shows a clear bimodal size distribution and anomalous growth temperature dependent island size evolutions are observed. the simulation results reproduce qualitatively the phenomena observed in the cases of inas islands grown on stepped gaas substrates. (c) 2009 american institute of physics. [doi:10.1063/1.3248367]
学科主题	半导体物理
收录类别	SCI
资助信息	national natural science foundation of china 60706009 90401025607360366077702160476009
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/7551]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Liang S ,Zhu HL ,Wang W . Size distributions of quantum islands on stepped substrates[J]. journal of chemical physics,2009,131(15):art.no.154704.
APA	Liang S ,Zhu HL ,&Wang W .(2009).Size distributions of quantum islands on stepped substrates.journal of chemical physics,131(15),art.no.154704.
MLA	Liang S ,et al."Size distributions of quantum islands on stepped substrates".journal of chemical physics 131.15(2009):art.no.154704.