Fast global optimization of SixHy clusters:: new mutation operators in the cluster genetic algorithm

被引：11

作者：

Ge, YB ^{[1
]}

Head, JD ^{[1
]}

机构：

[1] Univ Hawaii, Dept Chem, Honolulu, HI 96822 USA

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 398卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2004.09.040

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An improved strategy for finding the ab initio global minimum of Si,H, clusters based on a cluster genetic algorithm (CGA) is presented. Four new mutation operators are introduced which better facilitate retention of desirable structural features between the different generations of clusters in the CGA. The new CGA generally finds global minima with fewer energy evaluations and is now able to find the problem global minima for Si14H2O and Si6H6 which were not as readily located by our previous CGA. The new CGA is used to find the global minima for the even larger Si18H24 and Si18H22 clusters. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：107 / 112

页数：6

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