A climbing image nudged elastic band method for finding saddle points and minimum energy paths

被引:17341
|
作者
Henkelman, G [1 ]
Uberuaga, BP
Jónsson, H
机构
[1] Univ Washington, Dept Chem 351700, Seattle, WA 98195 USA
[2] Univ Washington, Dept Phys 351560, Seattle, WA 98195 USA
来源
JOURNAL OF CHEMICAL PHYSICS | 2000年 / 113卷 / 22期
关键词
D O I
10.1063/1.1329672
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
A modification of the nudged elastic band method for finding minimum energy paths is presented. One of the images is made to climb up along the elastic band to converge rigorously on the highest saddle point. Also, variable spring constants are used to increase the density of images near the top of the energy barrier to get an improved estimate of the reaction coordinate near the saddle point. Applications to CH4 dissociative adsorption on Ir(111) and H-2 on Si(100) using plane wave based density functional theory are presented. (C) 2000 American Institute of Physics. [S0021-9606(00)71246-3].
引用
收藏
页码:9901 / 9904
页数:4
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