计算物理 ›› 2000, Vol. 17 ›› Issue (6): 641-644.

• 论文 • 上一篇    下一篇

分子动力学模拟粒子在表面上的俘获过程

段香梅, 龚新高   

  1. 中国科学院固体物理研究所, 安徽 合肥 230031
  • 收稿日期:1999-08-03 修回日期:1999-09-20 出版日期:2000-11-25 发布日期:2000-11-25
  • 作者简介:段香梅(1972~),女,山西襄汾,助研,博士生,从事计算物理研究.
  • 基金资助:
    国家自然科学基金和攀登计划资助项目

TRAPPING OF HYPERTHERMAL PARTICLES: A MOLECULAR DYNAMICS SIMULATION

DUAN Xiang-mei, GONG Xin-gao   

  1. Institute of Solid State Physics, Academia Sinica, Hefei 230031, P R China
  • Received:1999-08-03 Revised:1999-09-20 Online:2000-11-25 Published:2000-11-25

摘要: 采用分子动力学方法研究了粒子在金属衬底上的俘获过程。发现粒子垂直入射时,俘获概率随入射能量的增加而减小,而45°入射时,俘获概率表现出非单调行为,这些结果与实验观察相一致。同时还研究了俘获概率对入射角的依赖。

关键词: 俘获概率, 分子动力学

Abstract: It studies the trapping process of hyperthermal particles impacted on metal substrate by molecular dynamics simulations.Results show that,for normal incidence,the trapping probability decreases with increasing of the incident energy,while for 45° incidence,the trapping probability displays a non-monotonic behavior as observed in the recent experiment.The dependence of the trapping probability on the incident angle has also been investigated.

Key words: trapping probability, molecular dynamics

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