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Indexed by:期刊论文

Date of Publication:2002-01-01

Journal:Wuli Xuebao/Acta Physica Sinica

Included Journals:Scopus、PKU、ISTIC

Volume:51

Issue:12

Page Number:2802-2803

ISSN No.:10003290

Abstract:Molecular dynamics simulations have been applied to the investigation of the deposition of low-energy Pt38, Pt141, and Pt266 clusters on Pt(001) surface. The evolution process of cluster deposition with atomic average kinetic energies (Ea) of 0.1, 1.0 and 10eV and the effects on the substrate surface morphology have been analyzed. Simulation results show that Ea is an important parameter to describe behaviours of the clustes. Clusters with low Ea cannot damage the surface lattice seriously and the clusters can be considered as a deposition cluster. The power of cluster damaging surface lattice increases with the increase of Ea. When Ea = 10eV, the clusters can implant into the substrate. The effects of low energetic clusters on substrate surface morphology are also determined by Ea. The effects of clusters with more atoms, however, are stronger than that with fewer atoms. The mechanisms of the interactions between low-energy clusters and substrate surface are also discussed in this paper.