MOLECULAR-DYNAMICS STUDY OF LOW-ENERGY AR SCATTERING BY THE NI(001) SURFACE

被引：40

作者：

CHIRITA, V

PAILTHORPE, BA

COLLINS, RE

机构：

[1] School of Physics, University of Sydney, Broadway, NSW

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1993年 / 26卷 / 01期

关键词：

D O I：

10.1088/0022-3727/26/1/022

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The scattering of low-energy Ar atoms from a Ni(001) surface has been investigated using a Lennard-Jones two-body interatomic potential in a molecular dynamics simulation. Typical rare gas-metal surface scattering patterns, i.e. diffuse, lobular and classical rainbows, are obtained and new insights are gained regarding the mechanisms of superelastic collisions. The formation of the lobular patterns is shown to be due to the different ways in which tangential and normal momentum are exchanged with the surface. The energy accommodation coefficient was also investigated and shown to be strongly dependent on surface temperature for atoms with low incident energies.

引用

页码：133 / 142

页数：10

共 30 条

[1]

[Anonymous], 1974, INTERACTION GASES SO

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