Spontaneous formation of Mn nanocluster arrays on a Si(111)-7x7 surface observed with STM

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	Spontaneous formation of Mn nanocluster arrays on a Si(111)-7x7 surface observed with STM
	Wang, JZ ; Jia, JF ; Xiong, ZH ; Xue, QK
刊名	PHYSICAL REVIEW B
	2008
卷号	78 期号:4
关键词	SELF-ORGANIZED GROWTH ELECTRONIC-STRUCTURE MANGANESE SILICIDE CLUSTER FORMATION X 7) MICROSCOPY ADSORPTION NANODOTS STRAIN
ISSN号	1098-0121
通讯作者	Wang, JZ (reprint author), SW Univ, Sch Phys Sci & Technol, MOE Key Lab Luminescence & Real Time Anal, Chongqing 400715, Peoples R China.
中文摘要	An extreme low-deposition rate has been used to fabricate highly ordered Mn nanocluster arrays on A Si(111)-7x7 surface. Scanning tunneling microscopy (STM) studies reveal that the Mn nanoclusters prefer to occupy the faulted half-unit cells of the Si(1110)-7x7 with preference fraction similar to 95%. High-resolution STM images demonstrate that two types of three-dimensional Mn nanoclusters coexist in the arrays; one is an identical triangle cluster and the other is an off-center pear cluster. A planar identical Mn cluster has been obtained at the initial deposition stages, indicating the coverage-dependent Mn clustering. Careful analysis of the initial adsorption stage of Mn reveals that individual Mn atoms prefer to occupy the bridging B(2) sites around Si rest atoms and the substitution site of Si center adatoms. The formation mechanism of Mn nanocluster arrays is attributed to the delicate balance between thermodynamic tendency and kinetic limitation.
收录类别	SCI
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/311004/52967]
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	Wang, JZ,Jia, JF,Xiong, ZH,et al. Spontaneous formation of Mn nanocluster arrays on a Si(111)-7x7 surface observed with STM[J]. PHYSICAL REVIEW B,2008,78(4).
APA	Wang, JZ,Jia, JF,Xiong, ZH,&Xue, QK.(2008).Spontaneous formation of Mn nanocluster arrays on a Si(111)-7x7 surface observed with STM.PHYSICAL REVIEW B,78(4).
MLA	Wang, JZ,et al."Spontaneous formation of Mn nanocluster arrays on a Si(111)-7x7 surface observed with STM".PHYSICAL REVIEW B 78.4(2008).