Equilibrium Geometries, Stabilities, and Electronic Properties of the Bimetallic Ag-2-doped Si-n (n=1-11) Clusters: A Density-Functional Investigation
文献类型：期刊论文
| 作者 | Zhao, Ya-Ru1; Kuang, Xiao-Yu1,2; Wang, Su-Juan1; Li, Yan-Fang1; Lu, Peng1 |
| 刊名 | ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 66期号:5页码:353-362 |
| 关键词 | Ag-Si Cluster Geometric Configuration Density Function Method |
| ISSN号 | 0932-0784 |
| 通讯作者 | Kuang, Xiao-Yu(scu_kxy@163.com) |
| 英文摘要 | An ab initio method based on the density functional theory has been employed to investigate the behaviours of the bimetallic Ag-2-doped silicon clusters at a size of n = 1-11. The possible geometrical configurations, growth-pattern behaviours, stabilities, energy gaps, and electronic properties are presented and discussed. The optimized geometries reveal that the silicon atom surface-capped and silver atom substituted 3D structures are dominant growth patterns. The calculated averaged binding energy, fragmentation energy, and the second-order difference of energy manifest that the most stable structures of Ag2Sin (n = 1-11) clusters are Ag2Si2 and Ag2Si5 isomers, which is in qualitative agreement with the AgSin clusters. In addition, the gap between highest occupied and lowest unoccupied molecular orbital (HOMO-LUMO) exhibits that the Ag2Si3 and Ag2Si5 isomers have dramatically enhanced chemical stability. Natural population analysis shows that the charge-transfer phenomena are coincidence with the AgSin clusters but different from Mo2Sin systems. Furthermore, the dipole moments of stable Ag2Sin (n = 1-11) display a pronounced odd-even oscillation with the number of silicon atoms. |
| 资助项目 | Education Ministry of China[20050610011] ; National Natural Science Foundation of China[10974138] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000293309000012 |
| 出版者 | VERLAG Z NATURFORSCH |
| 资助机构 | Education Ministry of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/107175]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Kuang, Xiao-Yu |
| 作者单位 | 1.Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Ya-Ru,Kuang, Xiao-Yu,Wang, Su-Juan,et al. Equilibrium Geometries, Stabilities, and Electronic Properties of the Bimetallic Ag-2-doped Si-n (n=1-11) Clusters: A Density-Functional Investigation[J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,2011,66(5):353-362. |
| APA | Zhao, Ya-Ru,Kuang, Xiao-Yu,Wang, Su-Juan,Li, Yan-Fang,&Lu, Peng.(2011).Equilibrium Geometries, Stabilities, and Electronic Properties of the Bimetallic Ag-2-doped Si-n (n=1-11) Clusters: A Density-Functional Investigation.ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES,66(5),353-362. |
| MLA | Zhao, Ya-Ru,et al."Equilibrium Geometries, Stabilities, and Electronic Properties of the Bimetallic Ag-2-doped Si-n (n=1-11) Clusters: A Density-Functional Investigation".ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES 66.5(2011):353-362. |
入库方式： OAI收割
来源：金属研究所
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