Calculations of Trapping and Desorption in Heavy Atom Collisions with Surfaces

Details Calculations of Trapping and Desorption in Heavy Atom Collisions with Surfaces Calculations of Trapping and Desorption in Heavy Atom Collisions with Surfaces

2008-04-17

arxiv.org/abs/0804.2876v1

Physics

Classical Physics

14 pages including 3 figures

Scientific paper

10.1063/1.3073831

Calculations are carried out for the scattering of heavy rare gas atoms with surfaces using a recently developed classical theory that can track particles trapped in the physisorption potential well and follow them until ultimate desorption. Comparisons are made with recent experimental data for xenon scattering from molten gallium and indium, systems for which the rare gas is heavier than the surface atoms. The good agreement with the data obtained for both time-of-flight energy-resolved spectra and for total scattered angular distributions yields an estimate of the physisorption well depths for the two systems.

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