Rotational excitation in molecule-surface scattering is analyzed in a simple quantum two-dimensional model. The true molecule-surface potential is replaced by a hard-core ellipsoid. The model accurately describes the dominant features of the transition probability distribution. This is demonstrated by comparing rotational transition probabilities calculated from our model with the results of IOS calculations of Voges and Schinke using realistic potential. The model predicts a new scaling property concerning the anisotropy parameter of the potential surface.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry