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dc.contributor.author
Celedón, C E.
dc.contributor.author
Sánchez, E. A.
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Salazar Alarcón, Leonardo
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Guimpel, Julio Juan
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Cortés, A.
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Vargas, P.
dc.contributor.author
Arista, Nestor Ricardo
dc.date.available
2018-08-09T17:34:14Z
dc.date.issued
2015-10
dc.identifier.citation
Celedón, C E.; Sánchez, E. A.; Salazar Alarcón, Leonardo; Guimpel, Julio Juan; Cortés, A.; et al.; Band structure effects in the energy loss of low-energy protons and deuterons in thin films of Pt; Elsevier Science; Beam Interactions with Materials and Atoms; 360; 10-2015; 103-110
dc.identifier.issn
0168-583X
dc.identifier.uri
http://hdl.handle.net/11336/54799
dc.description.abstract
We have investigated experimentally and by computer simulations the energy-loss and angular distribution of low energy (E<10 keV) protons and deuterons transmitted through thin polycrystalline platinum films. The experimental results show significant deviations from the expected velocity dependence of the stopping power in the range of very low energies with respect to the predictions of the Density Functional Theory for a jellium model. This behavior is similar to those observed in other transition metals such as Cu, Ag and Au, but different from the linear dependence recently observed in another transition metal, Pd, which belongs to the same Group of Pt in the Periodic Table. These differences are analyzed in term of the properties of the electronic bands corresponding to Pt and Pd, represented in terms of the corresponding density of states. The present experiments include also a detailed study of the angular dependence of the energy loss and the angular distributions of transmitted protons and deuterons. The results are compared with computer simulations based on the Monte Carlo method and with a theoretical model that evaluates the contributions of elastic collisions, path length effects in the inelastic energy losses, and the effects of the foil roughness. The results of the analysis obtained from these various approaches provide a consistent and comprehensive description of the experimental findings.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Band Structure
dc.subject
Pt
dc.subject
Stopping Power
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Band structure effects in the energy loss of low-energy protons and deuterons in thin films of Pt
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-08T14:13:58Z
dc.journal.volume
360
dc.journal.pagination
103-110
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Celedón, C E.. Universidad Técnica Federico Santa María; Chile. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Sánchez, E. A.. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Salazar Alarcón, Leonardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Guimpel, Julio Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.description.fil
Fil: Cortés, A.. Universidad Técnica Federico Santa María; Chile
dc.description.fil
Fil: Vargas, P.. Universidad Técnica Federico Santa María; Chile
dc.description.fil
Fil: Arista, Nestor Ricardo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
dc.journal.title
Beam Interactions with Materials and Atoms
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.nimb.2015.08.018
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0168583X15007430
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