Evidence of kinetic trapping in clusters of C60 molecules -: art. no. 075503

被引:34
作者
Baletto, F
Doye, JPK
Ferrando, R
机构
[1] Univ Genoa, Dipartimento Fis, INFM, I-16146 Genoa, Italy
[2] Univ Genoa, Dipartimento Fis, CNR, CFSBT, I-16146 Genoa, Italy
[3] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
关键词
D O I
10.1103/PhysRevLett.88.075503
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Molecular dynamics simulations of the growth of nanoclusters of C-60 provide convincing evidence that experimental magic numbers, which are associated with structures based on Mackay icosahedra, are of kinetic origin. This finding resolves a long-standing contradiction between the experimental observations and the theoretically predicted most stable structures. Our results show that, even if a sticky intermolecular potential energetically disfavors icosahedral structures, the latter are frequently produced because the stickiness of the potential itself enhances kinetic trapping phenomena.
引用
收藏
页码:755031 / 755034
页数:4
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