Different magic number behaviors in supported metal clusters

doi:10.1007/s11051-010-9931-4

	Different magic number behaviors in supported metal clusters
	Zhang, Peng 1; Xie, Yiqun 1; Zhang, Wenxian 1; Ning, Xijing 2; Zhuang, Jun 1
刊名	JOURNAL OF NANOPARTICLE RESEARCH
	2011-04-01
卷号	13 页码:1801-1807
关键词	Magic number Supported clusters Metal surface Genetic algorithm Tight-binding potential Atomic interactions Nanostructures Theory Modeling
ISSN号	1388-0764
DOI	10.1007/s11051-010-9931-4
英文摘要	Two different magic number behaviors in supported metal clusters, which contain several to hundreds of atoms, are revealed on a series of fcc(001) metal surfaces based on the calculations with the tight-binding potential. The magic number sequence persists on some surfaces while gradually disappears on the others with the increasing cluster size. A theory is proposed to explain these behaviors in terms of atomic interactions. We find in surprise that the different magic number behaviors are triggered by the relatively weak adatom-adatom interactions between next nearest-neighbor (NNN) atoms, although the closed shell of the magic cluster is enhanced by nearest-neighbor interactions. For an attractive NNN interaction, the closed shell of the magic cluster is gradually destabilized and eventually broken, leading to the disappearance of the magic number sequence with increasing cluster size. For a repulsive one, the closed shell and magic number sequence persists. Besides, our theory also allows a good understanding of the equilibrium shape of Cu islands on the Cu(001) surface.
资助项目	Major State Basic Research Development Program of China (973 Program)[2010CB933800] ; Shanghai Municipal Education Commission[10ZZ02]
WOS关键词	SHELL STRUCTURE ; SURFACES ; NANOSTRUCTURES ; ISLANDS ; SI(111) ; MODEL
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000289735400043
资助机构	Major State Basic Research Development Program of China (973 Program) ; Shanghai Municipal Education Commission
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/34109]
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, Minist Educ, Key Lab Micro & Nano Photon Struct, Shanghai 200433, Peoples R China 2.Fudan Univ, Inst Modern Phys, Appl Ion Beam Phys Lab, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Peng,Xie, Yiqun,Zhang, Wenxian,et al. Different magic number behaviors in supported metal clusters[J]. JOURNAL OF NANOPARTICLE RESEARCH,2011,13:1801-1807.
APA	Zhang, Peng,Xie, Yiqun,Zhang, Wenxian,Ning, Xijing,&Zhuang, Jun.(2011).Different magic number behaviors in supported metal clusters.JOURNAL OF NANOPARTICLE RESEARCH,13,1801-1807.
MLA	Zhang, Peng,et al."Different magic number behaviors in supported metal clusters".JOURNAL OF NANOPARTICLE RESEARCH 13(2011):1801-1807.