✦ LIBER ✦

Model calculations in dynamics at surfaces. Dissociative sticking on a cold solid

✍ Scribed by T.B. Grimley

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 315 KB
Volume: 222
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)00390-4

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✦ Synopsis

A quantum-mechanical model for dissociative sticking, and scattering of a diatomic molecule witbout energy loss at a solid surface is solved exactly. The potential energy surface consists of two channels coupled by a 'late' separable potential. The dependence of the sticking coefficient so on the incident translational energy is exhibited for a parameter-L&ion of the model repre senting vibrationally cold Nz on rhenium. An increase of so with vibrational excitation is also calculated. Tbe results are qualitatively similar to those obtained by numerical time evolution of a wavepacket on a realistic potential energy surface.

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