Unified description of rotating-molecule–surface interactions: Comparison with experiment

Autor: V.D. Borman, L.J.F. Hermans, S.Y. Krylov, R. W. M. Hoogeveen
Rok vydání: 1990
Předmět:
Zdroj: Physical Review A. 42:6480-6485
ISSN: 1094-1622
1050-2947
DOI: 10.1103/physreva.42.6480
Popis: From previous experiments on surface light-induced drift it was found that the coefficient for tangential momentum accommodation in molecule-surface collisions can increase with increasing angular momentum of the molecule. By contrast, various molecular-beam-type experiments yielded the opposite result. These seemingly conflicting data are reconciled in a unified picture describing various phenomena related to molecule-surface interaction for rotating molecules. Using physical arguments it is demonstrated that the accommodation as a function of rotational quantum number should peak around the thermal value, decreasing both for lower and higher rotational quantum numbers of the incoming molecule.
Databáze: OpenAIRE