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题名: The dynamic diffusion behaviors of 2D small Fe clusters on a Fe(110) surface
作者: Chen, Dong;  Hu, Wangyu;  Yang, Jianyu;  Sun, Lixian
通讯作者: Hu Wangyu
刊名: JOURNAL OF PHYSICS-CONDENSED MATTER
发表日期: 2007-11-07
DOI: 10.1088/0953-8984/19/44/446009
卷: 19, 期:44, 页:446009-446011
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Condensed Matter
研究领域[WOS]: Physics
英文摘要: In this paper, the diffusion behaviors of Fe clusters on a Fe( 110) surface have been investigated using molecular dynamics simulations based on a modified analytic embedded-atom method. The stable configurations of Fe clusters are predicted to be close-packed islands configuration for Fe clusters up to nine atoms or even larger in size. The activation energy of surface diffusion exhibits an interesting, oscillatory behavior as a function of cluster size. As compared to the structures with extra atoms at the periphery, compact geometric configurations of Fe clusters (four-and seven-atom clusters) have an obviously higher activation energy. The reason is that for clusters of more than two atoms the diffusion mechanisms of 2D small clusters are achieved by the migration of extra atoms at the periphery.
关键词[WOS]: EMBEDDED-ATOM-METHOD ;  MOLECULAR-DYNAMICS ;  TRANSITION-METALS ;  ADATOM CLUSTERS ;  PD CLUSTERS ;  POTENTIALS ;  MECHANISMS ;  MODEL
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000250688400021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99623
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
2.Hunan Inst Engn, Dept Math & Phys, Xiangtan 411104, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Dong,Hu, Wangyu,Yang, Jianyu,et al. The dynamic diffusion behaviors of 2D small Fe clusters on a Fe(110) surface[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2007,19(44):446009-446011.
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