Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride

Autores
Matias Da Silva, Flávio; Grande, P. L.; Vos, M.; Koval, Peter; Koval, Natalia E.; Arista, Nestor Ricardo
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A recent experimental study of the energy losses of various ions in titanium nitride, in the low-energy range [M. A. Sortica, Sci. Rep. 9, 176 (2019)2045-232210.1038/s41598-018-36765-7], showed a striking departure of the measured values from those predicted by density functional theory. They suggested electron promotion in atomic collisions between dressed atoms as an explanation. In this Rapid Communication, we investigate the process of energy loss of slow ions in TiN using theoretical formulations that are based, on one side, on self-consistent models of nonlinear screening and quantum scattering theory, and on the other, on ab initio computations of the electron-density profile of titanium nitride. Two theoretical approaches are considered to determine the average energy transfer: One is based on the local-density approximation for the inhomogeneous electron gas corresponding to the calculated density of TiN, and the other is based on the Penn model for the convolution of the inhomogeneous electron-gas response based on a measured electron-loss function. Both approaches produce very similar results and are in remarkable agreement with the experimental data, indicating that the observed enhancement in the energy-loss values is due to the contribution of a range of electron densities in the TiN compound.
Fil: Matias Da Silva, Flávio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Grande, P. L.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Vos, M.. The Australian National University; Australia
Fil: Koval, Peter. Donostia International Physics Center; España
Fil: Koval, Natalia E.. Comisión de Investigaciones Científicas. Nanogune; España
Fil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina
Materia
Nonlinear Stopping
Slow Ions
No-Free-Electron System
Titanium Nitride
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:11336/124392
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitrideMatias Da Silva, FlávioGrande, P. L.Vos, M.Koval, PeterKoval, Natalia E.Arista, Nestor RicardoNonlinear StoppingSlow IonsNo-Free-Electron SystemTitanium Nitridehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A recent experimental study of the energy losses of various ions in titanium nitride, in the low-energy range [M. A. Sortica, Sci. Rep. 9, 176 (2019)2045-232210.1038/s41598-018-36765-7], showed a striking departure of the measured values from those predicted by density functional theory. They suggested electron promotion in atomic collisions between dressed atoms as an explanation. In this Rapid Communication, we investigate the process of energy loss of slow ions in TiN using theoretical formulations that are based, on one side, on self-consistent models of nonlinear screening and quantum scattering theory, and on the other, on ab initio computations of the electron-density profile of titanium nitride. Two theoretical approaches are considered to determine the average energy transfer: One is based on the local-density approximation for the inhomogeneous electron gas corresponding to the calculated density of TiN, and the other is based on the Penn model for the convolution of the inhomogeneous electron-gas response based on a measured electron-loss function. Both approaches produce very similar results and are in remarkable agreement with the experimental data, indicating that the observed enhancement in the energy-loss values is due to the contribution of a range of electron densities in the TiN compound.Fil: Matias Da Silva, Flávio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Grande, P. L.. Universidade Federal do Rio Grande do Sul; BrasilFil: Vos, M.. The Australian National University; AustraliaFil: Koval, Peter. Donostia International Physics Center; EspañaFil: Koval, Natalia E.. Comisión de Investigaciones Científicas. Nanogune; EspañaFil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; ArgentinaAmerican Physical Society2019-09-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/124392Matias Da Silva, Flávio; Grande, P. L.; Vos, M.; Koval, Peter; Koval, Natalia E.; et al.; Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 100; 030701; 20-9-2019; 1-62469-99262469-9934CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.030701info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.100.030701info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:28Zoai:ri.conicet.gov.ar:11336/124392instacron: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:34982025-09-03 09:50:28.926CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
title Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
spellingShingle Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
Matias Da Silva, Flávio
Nonlinear Stopping
Slow Ions
No-Free-Electron System
Titanium Nitride
title_short Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
title_full Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
title_fullStr Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
title_full_unstemmed Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
title_sort Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride
dc.creator.none.fl_str_mv Matias Da Silva, Flávio
Grande, P. L.
Vos, M.
Koval, Peter
Koval, Natalia E.
Arista, Nestor Ricardo
author Matias Da Silva, Flávio
author_facet Matias Da Silva, Flávio
Grande, P. L.
Vos, M.
Koval, Peter
Koval, Natalia E.
Arista, Nestor Ricardo
author_role author
author2 Grande, P. L.
Vos, M.
Koval, Peter
Koval, Natalia E.
Arista, Nestor Ricardo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Nonlinear Stopping
Slow Ions
No-Free-Electron System
Titanium Nitride
topic Nonlinear Stopping
Slow Ions
No-Free-Electron System
Titanium Nitride
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A recent experimental study of the energy losses of various ions in titanium nitride, in the low-energy range [M. A. Sortica, Sci. Rep. 9, 176 (2019)2045-232210.1038/s41598-018-36765-7], showed a striking departure of the measured values from those predicted by density functional theory. They suggested electron promotion in atomic collisions between dressed atoms as an explanation. In this Rapid Communication, we investigate the process of energy loss of slow ions in TiN using theoretical formulations that are based, on one side, on self-consistent models of nonlinear screening and quantum scattering theory, and on the other, on ab initio computations of the electron-density profile of titanium nitride. Two theoretical approaches are considered to determine the average energy transfer: One is based on the local-density approximation for the inhomogeneous electron gas corresponding to the calculated density of TiN, and the other is based on the Penn model for the convolution of the inhomogeneous electron-gas response based on a measured electron-loss function. Both approaches produce very similar results and are in remarkable agreement with the experimental data, indicating that the observed enhancement in the energy-loss values is due to the contribution of a range of electron densities in the TiN compound.
Fil: Matias Da Silva, Flávio. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Grande, P. L.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Vos, M.. The Australian National University; Australia
Fil: Koval, Peter. Donostia International Physics Center; España
Fil: Koval, Natalia E.. Comisión de Investigaciones Científicas. Nanogune; España
Fil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina
description A recent experimental study of the energy losses of various ions in titanium nitride, in the low-energy range [M. A. Sortica, Sci. Rep. 9, 176 (2019)2045-232210.1038/s41598-018-36765-7], showed a striking departure of the measured values from those predicted by density functional theory. They suggested electron promotion in atomic collisions between dressed atoms as an explanation. In this Rapid Communication, we investigate the process of energy loss of slow ions in TiN using theoretical formulations that are based, on one side, on self-consistent models of nonlinear screening and quantum scattering theory, and on the other, on ab initio computations of the electron-density profile of titanium nitride. Two theoretical approaches are considered to determine the average energy transfer: One is based on the local-density approximation for the inhomogeneous electron gas corresponding to the calculated density of TiN, and the other is based on the Penn model for the convolution of the inhomogeneous electron-gas response based on a measured electron-loss function. Both approaches produce very similar results and are in remarkable agreement with the experimental data, indicating that the observed enhancement in the energy-loss values is due to the contribution of a range of electron densities in the TiN compound.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-20
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/11336/124392
Matias Da Silva, Flávio; Grande, P. L.; Vos, M.; Koval, Peter; Koval, Natalia E.; et al.; Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 100; 030701; 20-9-2019; 1-6
2469-9926
2469-9934
CONICET Digital
CONICET
url http://hdl.handle.net/11336/124392
identifier_str_mv Matias Da Silva, Flávio; Grande, P. L.; Vos, M.; Koval, Peter; Koval, Natalia E.; et al.; Nonlinear stopping effects of slow ions in a no-free-electron system: Titanium nitride; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 100; 030701; 20-9-2019; 1-6
2469-9926
2469-9934
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.100.030701
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.100.030701
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
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 13.13397

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