Phase-field modeling of anomalous spiral step growth on Si(001) surface

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	Phase-field modeling of anomalous spiral step growth on Si(001) surface
	Yu, YM ; Liu, BG ; Voigt, A
刊名	PHYSICAL REVIEW B
	2009
卷号	79 期号:23
关键词	DISLOCATION CORES CRYSTAL-SURFACES SILICON STRESS MOTION
ISSN号	1098-0121
通讯作者	Yu, YM (reprint author), Tech Univ Dresden, Inst Wissenschaftliches Rechnen, D-01062 Dresden, Germany.
中文摘要	Motivated by recent experimental results on anomalous spiral step motion on Si (001) surfaces, we use a phase-field model to understand the observed growth mode. The developed phase-field model allows simulation of step motion and surface phase switching for growth and sublimation. Our simulated results reproduce the anomalous spiral step motion on the Si (001) surfaces. Furthermore, we investigate the step dynamics in terms of the steady-state spiral shape for possible strain distributions and a large range of deposition rates. The obtained scaling law of the step spacing as a function of the deposition rate is different from earlier results for conventional spiral step growth, and indicates a crossover toward the local step dynamics due to the strain field of the screw dislocation on the Si(001) surfaces.
收录类别	SCI
资助信息	Nature Science Foundation of China [10874232, 10774180, 60621091]; Chinese Academy of Sciences [KJCX2.YW.W09-5]; Chinese Department of Science and Technology [2005CB623602]; EU [STRP 016447]; NSF DMR [0502737]; DFG [Vo899/7-1]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50855]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yu, YM,Liu, BG,Voigt, A. Phase-field modeling of anomalous spiral step growth on Si(001) surface[J]. PHYSICAL REVIEW B,2009,79(23).
APA	Yu, YM,Liu, BG,&Voigt, A.(2009).Phase-field modeling of anomalous spiral step growth on Si(001) surface.PHYSICAL REVIEW B,79(23).
MLA	Yu, YM,et al."Phase-field modeling of anomalous spiral step growth on Si(001) surface".PHYSICAL REVIEW B 79.23(2009).