| 引用本文: | 黄琳,陈伟芳,吴其芬,等.氙原子在铂表面散射的分子动力论方法.[J].国防科技大学学报,2000,22(3):50-52.[点击复制] |
| HUANG Lin,CHEN Weifang,WU Qifen,et al.Molecular Dynamics Method of Scattering of the Xenon Atom from the Platinum Surface[J].Journal of National University of Defense Technology,2000,22(3):50-52[点击复制] |
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| 氙原子在铂表面散射的分子动力论方法 |
| 黄琳, 陈伟芳, 吴其芬, 任兵 |
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(国防科技大学 航天与材料工程学院, 湖南 长沙 410073)
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| 摘要: |
| 运用分子动力论方法研究气体分子( Xe) 在固壁表面( Pt) 的散射。在构造了合理的气体分子与固壁表面相互作用势模型之后, 运用随机经典轨道方法求解气体分子及固壁原子的运动方程, 得到气体分子运动轨迹及散射后的运动状态。结果表明, 气体分子散射后的角度分布与Maxwellian 模型存在较大差异, 而速度基本服从半空间的Maxwellian 分布。 |
| 关键词: 气-固相互作用 分子动力论方法 随机轨道方法 散射 |
| DOI： |
| 投稿日期：1999-09-10 |
| 基金项目:国家自然科学基金项目 |
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| Molecular Dynamics Method of Scattering of the Xenon Atom from the Platinum Surface |
| HUANG Lin, CHEN Weifang, WU Qifen, REN Bing |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Molecular dynamics method is employed for studying the scattering of xenon atom from the platinum surface. After constructing the reasonable gas-surface interaction potential energy function, the stochastic classic trajectory method is adopted to solve the motion equation of both gas atom and solid atoms, then the trajectory and velocity of gas atom can be obtained. The results show that the scattering angle distribution differs from that of Maxwellian model while the speed coincides with the half-space Maxwellian distribution. |
| Keywords: gas-surface interaction molecular dynamic method stochastic trajectory method Scattering |
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