Classical trajectoryhyphen;quantum forced oscillator study of gasndash;surface phonon scattering: He/Si(100)ndash;(2times;1)

摘要

Inelastic atomndash;surface phonon scattering for a model He/Si(100)ndash;(2times;1) system is investigated by the classical trajectoryhyphen;quantum forced oscillator (DECENT) method. Energy transfer between the atom and the phonon modes is examined. Single and multiphonon transition probabilities of the normal modes are calculated for several initial beam orientations and one initial kinetic energy. A high degree of grouphyphen;mode specificity for energy transfer is seen.