Promotion of crystal phase transitions by mass-of-cell control in molecular dynamics simulations: Phase transitions in benzene crystals

被引:4
作者
Yonetani, Y
Yokoi, K
机构
[1] Keio Univ, Sch Fundamental Sci & Technol, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
[2] Keio Univ, Fac Sci & Technol, Dept Appl Phys & Physicoinformat, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
关键词
molecular dynamics simulation; Parrinello-Rahman constant-pressure method; benzene crystal; phase transition; global search;
D O I
10.1080/08927020108024508
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
The promotion of crystal phase transitions in molecular dynamics (MD) simulations was realized by controlling the momentum of the MD cell. It was implemented by increasing the mass or velocity of the MD cell instantaneously during simulations within the framework of the constant-pressure method by Parrinello and Rahman. This method induced phase transitions in benzene crystals which have not been obtained in conventional MD simulations. This method is useful for the global search of stable (and metastable) crystal structures.
引用
收藏
页码:273 / 285
页数:13
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