中国物理B ›› 2010, Vol. 19 ›› Issue (11): 113601-113602.doi: 10.1088/1674-1056/19/11/113601

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Density functional study of AunCu (n=1–7) clusters

魏成富1, 郭建军2, 杨继先2, 迭东2   

  1. (1)Mianyang Normal University, Mianyang 621000, China; (2)School of Physics and Chemistry, Xihua University, Chengdu 610039, China
  • 收稿日期:2010-03-12 修回日期:2010-04-26 出版日期:2010-11-15 发布日期:2010-11-15
  • 基金资助:
    Project supported by the Foundation from the Education Commission of Sichuan Province, China (Grant No. 2006B042).

Density functional study of AunCu (n=1–7) clusters

Guo Jian-Jun(郭建军)a), Wei Cheng-Fu(魏成富)b), Yang Ji-Xian(杨继先)a), and Die Dong (迭东)a)   

  1. a Mianyang Normal University, Mianyang 621000, China; b School of Physics and Chemistry, Xihua University, Chengdu 610039, China
  • Received:2010-03-12 Revised:2010-04-26 Online:2010-11-15 Published:2010-11-15
  • Supported by:
    Project supported by the Foundation from the Education Commission of Sichuan Province, China (Grant No. 2006B042).

摘要: The possible stable geometrical configurations and the relative stabilities of the lowest-lying isomers of copper-doped gold clusters, AunCu (n=1-7), are investigated using the density functional theory. Several low-lying isomers are determined. The results indicate that the ground-state AunCu clusters have planar structures for n = 1-7. The stability trend of the AunCu clusters (n=1-7), shows that odd-numbered AunCu clusters are more stable than the neighbouring even-numbered ones, thereby indicating the Au5Cu clusters are magic cluster with high chemical stability.

Abstract: The possible stable geometrical configurations and the relative stabilities of the lowest-lying isomers of copper-doped gold clusters, AunCu (n=1–7), are investigated using the density functional theory. Several low-lying isomers are determined. The results indicate that the ground-state AunCu clusters have planar structures for n = 1–7. The stability trend of the AunCu clusters (n=1–7), shows that odd-numbered AunCu clusters are more stable than the neighbouring even-numbered ones, thereby indicating the Au5Cu clusters are magic cluster with high chemical stability.

Key words: density functional theory, Au–Cu clusters, structure, stability

中图分类号: 

  • 31.15.E-
36.40.Cg (Electronic and magnetic properties of clusters) 36.40.Mr (Spectroscopy and geometrical structure of clusters) 36.40.Qv (Stability and fragmentation of clusters)