Diffusions of small clusters on Pt(111) and Cu(111) surfaces

doi:10.1016/j.apsusc.2008.03.060

	Diffusions of small clusters on Pt(111) and Cu(111) surfaces
	Jiang, Jianxing 1; Zhang, Peng 1; Xie, Yiqun 1; Ning, Xijing 2; Zhuang, Min 3; Li, Yufen 1; Zhuang, Jun 1
刊名	APPLIED SURFACE SCIENCE
	2008-07-15
卷号	254 页码:5822-5826
关键词	surface diffusion clusters metallic surfaces molecular dynamics
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2008.03.060
英文摘要	Diffusions of small cluster Pt(6) on Pt(1 1 1) surface and Cu(6) on Cu(1 1 1) are studied by molecular dynamics simulation, respectively. The atomic interaction is modeled by the semiempirical potential. The results show that the diffusion processes in the two systems are far different. For example, on Pt(1 1 1) surface, the hopping of single atom and the shearing of two atoms of hexamer only occur on the adatom(s) adsorbed at B-step, while on Cu(1 1 1) surface they can appear on the adatom(s) either at A-step or B-step. To the concerted translation of the parallelogram hexamer, the anisotropy in the diffusion path is observed in the two systems, the mechanisms and then the preferential paths, however, are completely different. The reasons for these diffusion characteristics and differences are discussed. (C) 2008 Elsevier B. V. All rights reserved.
WOS关键词	METAL FCC(100) SURFACES ; SELF-DIFFUSION ; EXCHANGE MECHANISM ; MOLECULAR-DYNAMICS ; DISSOCIATION ; PLATINUM ; PT(001) ; GROWTH ; DIMERS ; MODEL
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000256815000027
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/28570]
专题	中国科学院近代物理研究所
通讯作者	Zhuang, Jun
作者单位	1.Fudan Univ, Dept Opt Sci & Engn, State Key Lab Adv Photon Mat & Devices, Shanghai 200433, Peoples R China 2.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China 3.Univ Montreal, Dept Chim, Montreal, PQ H3C 3J7, Canada
推荐引用方式 GB/T 7714	Jiang, Jianxing,Zhang, Peng,Xie, Yiqun,et al. Diffusions of small clusters on Pt(111) and Cu(111) surfaces[J]. APPLIED SURFACE SCIENCE,2008,254:5822-5826.
APA	Jiang, Jianxing.,Zhang, Peng.,Xie, Yiqun.,Ning, Xijing.,Zhuang, Min.,...&Zhuang, Jun.(2008).Diffusions of small clusters on Pt(111) and Cu(111) surfaces.APPLIED SURFACE SCIENCE,254,5822-5826.
MLA	Jiang, Jianxing,et al."Diffusions of small clusters on Pt(111) and Cu(111) surfaces".APPLIED SURFACE SCIENCE 254(2008):5822-5826.