计算物理 ›› 2001, Vol. 18 ›› Issue (4): 356-359.

• 论文 • 上一篇    下一篇

液态Au和Ag冷却过程的分子动力学模拟

管立, 吴爱玲, 张晓茹   

  1. 山东大学物理与微电子学院, 山东 济南 250061
  • 收稿日期:1999-12-21 修回日期:2000-05-18 出版日期:2001-07-25 发布日期:2001-07-25
  • 作者简介:管立(1955-),女,山东济南,副教授,从事材料结构的计算机模拟方面的研究.

MOLECULAR DYNAMICS SIMULATIONS OF THE CRYSTALLIZATION OF LIQUID Au AND Ag

GUAN Li, WU Ai-ling, ZHANG Xiao-ru   

  1. College of Physics and Microelectronics, Shandong University, Jinan 250061, P R China
  • Received:1999-12-21 Revised:2000-05-18 Online:2001-07-25 Published:2001-07-25

摘要: 采用反映原子多体相互作用的FS势模型,通过分子动力学方法研究了贵金属Au、Ag在温度2000~300 K之间的冷却过程,考察其结构变化特点,给出了冷却过程微观结构转变的重要信息.

关键词: FS多体势, 液态金属, 分子动力学模拟, 结晶

Abstract: Based on many body potential model,the crystallizing processes of Au and Ag are investigated by means of molecular dynamics simulation technique.The pairs analysis method is applied to compare the difference of the local symmetry of molecular cluster between both atoms.In the process of crystallization, the rebuild of the local cluster and the transformation of pairs is found to be from 1661、1441 to 1421、1422.The other important information given is about the microstructure of Au,Ag.

Key words: F-SN-body potential, liquid metal, molecular dynamics simulation, crystallization

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