Melting Transition of Small Aluminium Clusters Al11-20  

作　　者：张伟 张丰收 朱志远 

机构地区：[1]The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875 [2]Beijing naaiation-Center, Beijing 100875 [3]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800

出　　处：《Chinese Physics Letters》2007年第7期1915-1918,共4页中国物理快报（英文版）

基　　金：Supported by the Natural Science Foundation of China under Grant Nos 10575012 and 10435020, the Science Foundation of Beijing, and the Science Foundation of the Ministry of Education of China.

摘　　要：Heat capacities of small aluminium clusters A111-20 are investigated using MD simulation with empirical many- body Gupta potential. The heat capacities of some clusters A111, A112, A113 and A119 show well-defined peaks while the heat capacities of Alls-ls indicate a gradual melting transition. The spectra of isomers obtained by quenches along the MD trajectory give good interpretation for those results.Heat capacities of small aluminium clusters A111-20 are investigated using MD simulation with empirical many- body Gupta potential. The heat capacities of some clusters A111, A112, A113 and A119 show well-defined peaks while the heat capacities of Alls-ls indicate a gradual melting transition. The spectra of isomers obtained by quenches along the MD trajectory give good interpretation for those results.

关 键 词：SODIUM CLUSTERS STRUCTURAL-PROPERTIES MOLECULAR-DYNAMICS BEHAVIOR METALS 

分 类 号：O44[理学—电磁学]