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Si60团簇与Si(111)面碰撞的紧束缚分子动力学模拟
Tight-binding Molecular Dynamics Simulations: the Collisions of Si60 Clusters with Si(111) Surface
【摘要】 利用普适的紧束缚分子动力学模拟研究在不同入射条件下Si60团簇与Si(111)面的碰撞机理,结果表明Si60分子是"非弹性分子",入射角度对碰撞结果有重要影响,Si60分子易和Si(111)面发生化学反应,其保持结构特性吸附于Si(111)表面的能量域值在50~80eV之间.
【Abstract】 The transferable tight-binding molecular dynamics simulations of Si60 impacting on a (Si(111)) surface with different incident energe and angle are reported.The result shows that Si60 molecule is inelastic,and the incident angle plays an important role in the collisions.The Si60 cluster with 50~80 eV incident kinetic energy can be adsorbed on the Si(111) surface.The stability of Si60 molecule is less than that of C60 molecule.
【关键词】 Si60团簇;
紧束缚势;
碰撞;
入射角度;
分子动力学;
【Key words】 Si60 cluster; tight-binding potential; collision; incident angle; molecular dynamics;
【Key words】 Si60 cluster; tight-binding potential; collision; incident angle; molecular dynamics;
【基金】 徐州师范大学自然科学基金资助项目(03XLB07)
- 【文献出处】 徐州师范大学学报(自然科学版) ,Journal of Xuzhou Normal University(Natural Science Edition) , 编辑部邮箱 ,2004年04期
- 【分类号】O561.5
- 【被引频次】2
- 【下载频次】103