Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface
Angle- and energy-loss-resolved distributions of helium atoms grazingly scattered from a Ag(110) surface along low indexed crystallographic directions are investigated considering impact energies in the few keV range. Final projectile distributions are evaluated within a semi-classical formalism tha...
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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0168583X_v340_n_p15_RiosRubiano |
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todo:paper_0168583X_v340_n_p15_RiosRubiano2023-10-03T15:06:31Z Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface Ríos Rubiano, C.A. Bocan, G.A. Juaristi, J.I. Gravielle, M.S. Energy loss Grazing incidence Metal surface Friction Silver Surface scattering Crystallographic directions Dissipative effects Energy loss distributions Energy-loss spectrum Grazing incidence Metal surfaces Multiple peak structures Projectile distributions Energy dissipation Angle- and energy-loss-resolved distributions of helium atoms grazingly scattered from a Ag(110) surface along low indexed crystallographic directions are investigated considering impact energies in the few keV range. Final projectile distributions are evaluated within a semi-classical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For mono-energetic beams impinging along the [11¯0],[11¯2] and [001] directions, the model predicts the presence of multiple peak structures in energy-loss spectra. Such structures provide detailed information about the trajectory-dependent energy loss. However, when the experimental dispersion of the incident beam is taken into account, these energy-loss peaks are completely washed out, giving rise to a smooth energy-loss distribution, in fairly good agreement with available experimental data. © 2014 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0168583X_v340_n_p15_RiosRubiano |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Energy loss Grazing incidence Metal surface Friction Silver Surface scattering Crystallographic directions Dissipative effects Energy loss distributions Energy-loss spectrum Grazing incidence Metal surfaces Multiple peak structures Projectile distributions Energy dissipation |
spellingShingle |
Energy loss Grazing incidence Metal surface Friction Silver Surface scattering Crystallographic directions Dissipative effects Energy loss distributions Energy-loss spectrum Grazing incidence Metal surfaces Multiple peak structures Projectile distributions Energy dissipation Ríos Rubiano, C.A. Bocan, G.A. Juaristi, J.I. Gravielle, M.S. Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
topic_facet |
Energy loss Grazing incidence Metal surface Friction Silver Surface scattering Crystallographic directions Dissipative effects Energy loss distributions Energy-loss spectrum Grazing incidence Metal surfaces Multiple peak structures Projectile distributions Energy dissipation |
description |
Angle- and energy-loss-resolved distributions of helium atoms grazingly scattered from a Ag(110) surface along low indexed crystallographic directions are investigated considering impact energies in the few keV range. Final projectile distributions are evaluated within a semi-classical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For mono-energetic beams impinging along the [11¯0],[11¯2] and [001] directions, the model predicts the presence of multiple peak structures in energy-loss spectra. Such structures provide detailed information about the trajectory-dependent energy loss. However, when the experimental dispersion of the incident beam is taken into account, these energy-loss peaks are completely washed out, giving rise to a smooth energy-loss distribution, in fairly good agreement with available experimental data. © 2014 Elsevier B.V. All rights reserved. |
format |
JOUR |
author |
Ríos Rubiano, C.A. Bocan, G.A. Juaristi, J.I. Gravielle, M.S. |
author_facet |
Ríos Rubiano, C.A. Bocan, G.A. Juaristi, J.I. Gravielle, M.S. |
author_sort |
Ríos Rubiano, C.A. |
title |
Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
title_short |
Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
title_full |
Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
title_fullStr |
Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
title_full_unstemmed |
Trajectory-dependent energy loss for swift He atoms axially scattered off a silver surface |
title_sort |
trajectory-dependent energy loss for swift he atoms axially scattered off a silver surface |
url |
http://hdl.handle.net/20.500.12110/paper_0168583X_v340_n_p15_RiosRubiano |
work_keys_str_mv |
AT riosrubianoca trajectorydependentenergylossforswiftheatomsaxiallyscatteredoffasilversurface AT bocanga trajectorydependentenergylossforswiftheatomsaxiallyscatteredoffasilversurface AT juaristiji trajectorydependentenergylossforswiftheatomsaxiallyscatteredoffasilversurface AT graviellems trajectorydependentenergylossforswiftheatomsaxiallyscatteredoffasilversurface |
_version_ |
1782024591054471168 |