Abstract
SynopsisAngle- and energy-loss- resolved distributions for He atoms axially scattered off a Ag(110) surface are calculated in order to study the influence of inelastic processes on fast atom diffraction (FAD) spectra. Final projectile distributions are evaluated within a semi-classical formalism that includes dissipative effects due to electronic excitations. For monoenergetic beams the model predicts the presence of multiple peaks in energy-loss spectra. But these structures disappear when the experimental conditions are included, giving rise to an energy-loss distribution in good agreement with available experimental data. The inelastic contribution to FAD patterns is estimated.
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