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 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. © Published under licence by IOP Publishing Ltd.
Documento: | Conferencia |
Título: | Energy-loss contribution for fast He atoms axially scattered off a silver surface |
Autor: | Rubiano, C.A.R.; Bocan, G.A.; Juaristi, J.I.; Gravielle, M.S.; Martin F.; Rabadan I.; Diaz C.; Garcia G.; Mendez L. |
Filiación: | Instituto de Astronomía y Física Del Espacio (IAFE, CONICET-UBA), Buenos Aires, Argentina Centro Atómico Bariloche, CONICET, S.C. de Bariloche, Río Negro, Argentina Depto. de Física de Materiales, Facultad de Químicas, UPV/EHU, San Sebastian, 20018, Spain Donostia International Physics Center (DIPC), Centro de Física de Materiales CFM/MPC (CSIC-UPV/EHU), San Sebastian, 20018, Spain |
Palabras clave: | Atoms; Condensed matter physics; Energy dissipation; Dissipative effects; Electronic excitation; Energy loss distributions; Energy-loss spectrum; Experimental conditions; Fast atom diffractions; Inelastic contributions; Projectile distributions; Surface scattering |
Año: | 2015 |
Volumen: | 635 |
Número: | 3 |
DOI: | http://dx.doi.org/10.1088/1742-6596/635/3/032013 |
Título revista: | 29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015 |
Título revista abreviado: | J. Phys. Conf. Ser. |
ISSN: | 17426588 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v635_n3_p_Rubiano |