IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Energy-loss contribution for fast He atoms axially scattered off a silver surface
Autor/es:
C. A. RIOS RUBIANO; G. A. BOCAN; J.I. JUARISTI; M.S. GRAVIELLE
Lugar:
Toledo
Reunión:
Conferencia; XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC); 2015
Institución organizadora:
Organizing Committee of the International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC)
Resumen:
Angle- 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 mono-energetic 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.