Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals

Time-dependent density-functional theory is used to calculate the energy loss of antiprotons and protons traversing metal clusters of variable size. We find that the effective energy loss per unit path length inside the cluster shows no significant cluster size effects over the wide range of project...

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Autores: Quijada Van den Berghe, Marina, Borisov, Andrei G., Nagy, Istvan, Díez Muiño, Ricardo, Echenique Landiribar, Pedro Miguel
Tipo de recurso: artículo
Fecha de publicación:2007
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/71482
Acceso en línea:http://hdl.handle.net/10810/71482
Access Level:acceso abierto
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spelling Time-dependent density functional calculation of the stopping power for protons and antiprotons in metalsQuijada Van den Berghe, MarinaBorisov, Andrei G.Nagy, IstvanDíez Muiño, RicardoEchenique Landiribar, Pedro MiguelTime-dependent density-functional theory is used to calculate the energy loss of antiprotons and protons traversing metal clusters of variable size. We find that the effective energy loss per unit path length inside the cluster shows no significant cluster size effects over the wide range of projectile velocities studied. This allows us to compare the calculated stopping power with the experimental values for a solid metal target. Excellent agreement between the theoretical results and recent experimental data is found for velocities below the inner-shell excitation threshold. We thus present a nonperturbative quantum-mechanical approach to obtain the energy loss of charges in solids.Financial support by the Basque Departamento de Educación, Universidades e Investigación, the University of the Basque Country UPV/EHU (Grant No. 9/UPV 00206.215-13639/2001), the Spanish MEC (Grant No. FIS2004-06490-C03-00), and the EU Network of Excellence NANOQUANTA (Grant No. NMP4-CT-2004-500198) is acknowledged. The work of I.N. was partially supported by the Hungarian OTKA (Grant Nos. T046868 and T049571).APS202520252007info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/71482reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://doi.org/10.1103/PhysRevA.75.042902info:eu-repo/semantics/openAccess©2007 The American Physical Societyoai:addi.ehu.eus:10810/714822026-06-18T09:23:17Z
dc.title.none.fl_str_mv Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
title Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
spellingShingle Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
Quijada Van den Berghe, Marina
title_short Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
title_full Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
title_fullStr Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
title_full_unstemmed Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
title_sort Time-dependent density functional calculation of the stopping power for protons and antiprotons in metals
dc.creator.none.fl_str_mv Quijada Van den Berghe, Marina
Borisov, Andrei G.
Nagy, Istvan
Díez Muiño, Ricardo
Echenique Landiribar, Pedro Miguel
author Quijada Van den Berghe, Marina
author_facet Quijada Van den Berghe, Marina
Borisov, Andrei G.
Nagy, Istvan
Díez Muiño, Ricardo
Echenique Landiribar, Pedro Miguel
author_role author
author2 Borisov, Andrei G.
Nagy, Istvan
Díez Muiño, Ricardo
Echenique Landiribar, Pedro Miguel
author2_role author
author
author
author
description Time-dependent density-functional theory is used to calculate the energy loss of antiprotons and protons traversing metal clusters of variable size. We find that the effective energy loss per unit path length inside the cluster shows no significant cluster size effects over the wide range of projectile velocities studied. This allows us to compare the calculated stopping power with the experimental values for a solid metal target. Excellent agreement between the theoretical results and recent experimental data is found for velocities below the inner-shell excitation threshold. We thus present a nonperturbative quantum-mechanical approach to obtain the energy loss of charges in solids.
publishDate 2007
dc.date.none.fl_str_mv 2007
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/71482
url http://hdl.handle.net/10810/71482
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1103/PhysRevA.75.042902
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
©2007 The American Physical Society
eu_rights_str_mv openAccess
rights_invalid_str_mv ©2007 The American Physical Society
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv APS
publisher.none.fl_str_mv APS
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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