Simulation of Depositions of a Lennard-Jones Cluster on a Crystalline Surface
Simulation of Depositions of a Lennard-Jones Cluster on a Crystalline Surface
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DOI：
10.1143/ptp.122.1081
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发表时间：
2009-05
影响因子：
--
通讯作者：
Kuniyasu Saitoh;Hisao Hayakawa
中科院分区：
文献类型：
--
作者：
Kuniyasu Saitoh;Hisao Hayakawa
对非晶态Lennard-Jones团簇在晶体表面的沉积进行了数值研究。分子动力学模拟结果表明，在一个临界入射速度下，沉积的团簇发生了从多层吸附到单层吸附的转变。利用能量守恒定律，我们可以解释吸附在衬底上的原子数与团簇大小之比的行为。沉积团簇的边界形状强烈地依赖于入射速度，在沉积团簇在衬底上扩散的过程中，会产生一些不稳定的模式。我们还讨论了不同Lennard-Jones原子之间的润湿性。主题指数：02333133545
Depositions of amorphous Lennard-Jones clusters on a crystalline surface are numerically investigated. From the results of the molecular dynamics simulation, we found that the deposited clusters exhibit a transition from multilayered adsorption to monolayered adsorption at a critical incident speed. Employing the energy conservation law, we can explain the behavior of the ratio of the number of atoms adsorbed on the substrate to the cluster size. The boundary shape of the deposited cluster depends strongly on the incident speed, and some unstable modes grow during the spread of the deposited cluster on the substrate. We also discuss the wettability between different Lennard-Jones atoms. Subject Index: 023, 331, 335, 545