Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms

Autores
Bonetto, Fernando Jose; Romero, Marcelo Ariel; García, Evelina Andrea; Vidal, Ricardo Alberto; Ferron, Julio; Goldberg, Edith Catalina
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report measurements of neutral atom fractions for Li+ scattered by a highly oriented pyrolytic graphite surface as a function of the incident ion energy and exit angle. We found an unexpected large neutralization probability that increases with both energy and exit angle. Based on a dynamical quantum calculation of the scattering process that accounts for the extended features of the surface and the localized nature of the atom-atom interactions, we propose that the resonant neutralization to the Li ground state is a relevant mechanism in this collision. However, to understand the whole process including the angular dependence, and taking into account the Li energy-level variations, we conclude that other mechanisms such as Auger neutralization to the ground state and resonant neutralization to excited states should also be considered. 
Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: García, Evelina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Materia
Ion Scattering
Charge Transfer
Resonant Process
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:11336/25349
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanismsBonetto, Fernando JoseRomero, Marcelo ArielGarcía, Evelina AndreaVidal, Ricardo AlbertoFerron, JulioGoldberg, Edith CatalinaIon ScatteringCharge TransferResonant Processhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report measurements of neutral atom fractions for Li+ scattered by a highly oriented pyrolytic graphite surface as a function of the incident ion energy and exit angle. We found an unexpected large neutralization probability that increases with both energy and exit angle. Based on a dynamical quantum calculation of the scattering process that accounts for the extended features of the surface and the localized nature of the atom-atom interactions, we propose that the resonant neutralization to the Li ground state is a relevant mechanism in this collision. However, to understand the whole process including the angular dependence, and taking into account the Li energy-level variations, we conclude that other mechanisms such as Auger neutralization to the ground state and resonant neutralization to excited states should also be considered. Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: García, Evelina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaAmerican Physical Society2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25349Bonetto, Fernando Jose; Romero, Marcelo Ariel; García, Evelina Andrea; Vidal, Ricardo Alberto; Ferron, Julio; et al.; Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms; American Physical Society; Physical Review B; 78; 7; 12-2008; 754221-7542270163-1829CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.78.075422info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.78.075422info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:15Zoai:ri.conicet.gov.ar:11336/25349instacron: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:34982025-09-10 13:07:16.257CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
title Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
spellingShingle Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
Bonetto, Fernando Jose
Ion Scattering
Charge Transfer
Resonant Process
title_short Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
title_full Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
title_fullStr Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
title_full_unstemmed Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
title_sort Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms
dc.creator.none.fl_str_mv Bonetto, Fernando Jose
Romero, Marcelo Ariel
García, Evelina Andrea
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author Bonetto, Fernando Jose
author_facet Bonetto, Fernando Jose
Romero, Marcelo Ariel
García, Evelina Andrea
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author_role author
author2 Romero, Marcelo Ariel
García, Evelina Andrea
Vidal, Ricardo Alberto
Ferron, Julio
Goldberg, Edith Catalina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ion Scattering
Charge Transfer
Resonant Process
topic Ion Scattering
Charge Transfer
Resonant Process
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report measurements of neutral atom fractions for Li+ scattered by a highly oriented pyrolytic graphite surface as a function of the incident ion energy and exit angle. We found an unexpected large neutralization probability that increases with both energy and exit angle. Based on a dynamical quantum calculation of the scattering process that accounts for the extended features of the surface and the localized nature of the atom-atom interactions, we propose that the resonant neutralization to the Li ground state is a relevant mechanism in this collision. However, to understand the whole process including the angular dependence, and taking into account the Li energy-level variations, we conclude that other mechanisms such as Auger neutralization to the ground state and resonant neutralization to excited states should also be considered. 
Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Romero, Marcelo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: García, Evelina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description We report measurements of neutral atom fractions for Li+ scattered by a highly oriented pyrolytic graphite surface as a function of the incident ion energy and exit angle. We found an unexpected large neutralization probability that increases with both energy and exit angle. Based on a dynamical quantum calculation of the scattering process that accounts for the extended features of the surface and the localized nature of the atom-atom interactions, we propose that the resonant neutralization to the Li ground state is a relevant mechanism in this collision. However, to understand the whole process including the angular dependence, and taking into account the Li energy-level variations, we conclude that other mechanisms such as Auger neutralization to the ground state and resonant neutralization to excited states should also be considered. 
publishDate 2008
dc.date.none.fl_str_mv 2008-12
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/11336/25349
Bonetto, Fernando Jose; Romero, Marcelo Ariel; García, Evelina Andrea; Vidal, Ricardo Alberto; Ferron, Julio; et al.; Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms; American Physical Society; Physical Review B; 78; 7; 12-2008; 754221-754227
0163-1829
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25349
identifier_str_mv Bonetto, Fernando Jose; Romero, Marcelo Ariel; García, Evelina Andrea; Vidal, Ricardo Alberto; Ferron, Julio; et al.; Large neutral fractions in collisions of Li+ with a highly oriented pyrolytic graphite surface:Resonant and Auger mechanisms; American Physical Society; Physical Review B; 78; 7; 12-2008; 754221-754227
0163-1829
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.78.075422
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.78.075422
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
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 12.993085

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