Energy-loss contribution to grazing scattering of fast He atoms from a silver surface

Autores
Rios Rubiano, Carlos Alberto; Bocan, Gisela Anahí; Juaristi, J. I.; Gravielle, Maria Silvia
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The energy lost by helium atoms axially scattered from a Ag(110) surface is studied in order to investigate the influence of dissipative processes on fast atom diffraction spectra. In this work inelastic projectile distributions are evaluated within a semiclassical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For incidence along the [1-12] and [1-10] directions the model predicts the presence of multiple peaks in the energy-loss spectrum for a given impact energy. But these structures are  completely washed out when the experimental dispersion of the incident beam is taken into account, giving rise to a smooth energy-loss distribution. Simulations including the  experimental energy spread are in fairly good agreement with available experimental data for the [1-12] channel. In addition, our results suggest that inelastic processes produce an almost constant background in the transverse momentum distribution, except in the extremes of the momentum range where classical rainbow maxima appear. By adding elastic and inelastic contributions, experimental diffraction patterns are well reproduced.
Fil: Rios Rubiano, Carlos Alberto. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bocan, Gisela Anahí. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Juaristi, J. I.. Centro de Física de Materiales; España
Fil: Gravielle, Maria Silvia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Materia
Energy Loss
Grazing
Atom
Surface
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/21535
Acceder
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spelling Energy-loss contribution to grazing scattering of fast He atoms from a silver surfaceRios Rubiano, Carlos AlbertoBocan, Gisela AnahíJuaristi, J. I.Gravielle, Maria SilviaEnergy LossGrazingAtomSurfacehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The energy lost by helium atoms axially scattered from a Ag(110) surface is studied in order to investigate the influence of dissipative processes on fast atom diffraction spectra. In this work inelastic projectile distributions are evaluated within a semiclassical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For incidence along the [1-12] and [1-10] directions the model predicts the presence of multiple peaks in the energy-loss spectrum for a given impact energy. But these structures are  completely washed out when the experimental dispersion of the incident beam is taken into account, giving rise to a smooth energy-loss distribution. Simulations including the  experimental energy spread are in fairly good agreement with available experimental data for the [1-12] channel. In addition, our results suggest that inelastic processes produce an almost constant background in the transverse momentum distribution, except in the extremes of the momentum range where classical rainbow maxima appear. By adding elastic and inelastic contributions, experimental diffraction patterns are well reproduced.Fil: Rios Rubiano, Carlos Alberto. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Bocan, Gisela Anahí. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Juaristi, J. I.. Centro de Física de Materiales; EspañaFil: Gravielle, Maria Silvia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaAmerican Physical Society2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/21535Rios Rubiano, Carlos Alberto; Bocan, Gisela Anahí; Juaristi, J. I.; Gravielle, Maria Silvia; Energy-loss contribution to grazing scattering of fast He atoms from a silver surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 3; 3-2014; 1-7; 0327061050-2947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.032706info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.89.032706info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:25:22Zoai:ri.conicet.gov.ar:11336/21535instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:25:22.563CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
title Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
spellingShingle Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
Rios Rubiano, Carlos Alberto
Energy Loss
Grazing
Atom
Surface
title_short Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
title_full Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
title_fullStr Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
title_full_unstemmed Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
title_sort Energy-loss contribution to grazing scattering of fast He atoms from a silver surface
dc.creator.none.fl_str_mv Rios Rubiano, Carlos Alberto
Bocan, Gisela Anahí
Juaristi, J. I.
Gravielle, Maria Silvia
author Rios Rubiano, Carlos Alberto
author_facet Rios Rubiano, Carlos Alberto
Bocan, Gisela Anahí
Juaristi, J. I.
Gravielle, Maria Silvia
author_role author
author2 Bocan, Gisela Anahí
Juaristi, J. I.
Gravielle, Maria Silvia
author2_role author
author
author
dc.subject.none.fl_str_mv Energy Loss
Grazing
Atom
Surface
topic Energy Loss
Grazing
Atom
Surface
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The energy lost by helium atoms axially scattered from a Ag(110) surface is studied in order to investigate the influence of dissipative processes on fast atom diffraction spectra. In this work inelastic projectile distributions are evaluated within a semiclassical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For incidence along the [1-12] and [1-10] directions the model predicts the presence of multiple peaks in the energy-loss spectrum for a given impact energy. But these structures are  completely washed out when the experimental dispersion of the incident beam is taken into account, giving rise to a smooth energy-loss distribution. Simulations including the  experimental energy spread are in fairly good agreement with available experimental data for the [1-12] channel. In addition, our results suggest that inelastic processes produce an almost constant background in the transverse momentum distribution, except in the extremes of the momentum range where classical rainbow maxima appear. By adding elastic and inelastic contributions, experimental diffraction patterns are well reproduced.
Fil: Rios Rubiano, Carlos Alberto. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Bocan, Gisela Anahí. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Juaristi, J. I.. Centro de Física de Materiales; España
Fil: Gravielle, Maria Silvia. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description The energy lost by helium atoms axially scattered from a Ag(110) surface is studied in order to investigate the influence of dissipative processes on fast atom diffraction spectra. In this work inelastic projectile distributions are evaluated within a semiclassical formalism that includes dissipative effects due to electron-hole excitations through a friction force. For incidence along the [1-12] and [1-10] directions the model predicts the presence of multiple peaks in the energy-loss spectrum for a given impact energy. But these structures are  completely washed out when the experimental dispersion of the incident beam is taken into account, giving rise to a smooth energy-loss distribution. Simulations including the  experimental energy spread are in fairly good agreement with available experimental data for the [1-12] channel. In addition, our results suggest that inelastic processes produce an almost constant background in the transverse momentum distribution, except in the extremes of the momentum range where classical rainbow maxima appear. By adding elastic and inelastic contributions, experimental diffraction patterns are well reproduced.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/21535
Rios Rubiano, Carlos Alberto; Bocan, Gisela Anahí; Juaristi, J. I.; Gravielle, Maria Silvia; Energy-loss contribution to grazing scattering of fast He atoms from a silver surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 3; 3-2014; 1-7; 032706
1050-2947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/21535
identifier_str_mv Rios Rubiano, Carlos Alberto; Bocan, Gisela Anahí; Juaristi, J. I.; Gravielle, Maria Silvia; Energy-loss contribution to grazing scattering of fast He atoms from a silver surface; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 3; 3-2014; 1-7; 032706
1050-2947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.032706
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.89.032706
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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