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dc.contributor.author
Quintero Riascos, Vanessa Alexandra
dc.contributor.author
Tacca, Marcos Sebastian
dc.contributor.author
Vidal, Ricardo Alberto
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Gonzalez, C.
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Goldberg, Edith Catalina
dc.contributor.author
Bonetto, Fernando Jose
dc.date.available
2022-10-17T13:19:01Z
dc.date.issued
2021-06-08
dc.identifier.citation
Quintero Riascos, Vanessa Alexandra; Tacca, Marcos Sebastian; Vidal, Ricardo Alberto; Gonzalez, C.; Goldberg, Edith Catalina; et al.; Electron capture and loss in the scattering of low-energy protons with a C60 monolayer deposited on Cu(111); American Physical Society; Physical Review A; 103; 6; 8-6-2021; 1-15
dc.identifier.issn
2469-9926
dc.identifier.uri
http://hdl.handle.net/11336/173439
dc.description.abstract
Final projectile charge states are experimentally and theoretically analyzed after H+ ions collide with a C60 monolayer deposited on Cu(111) with an ample range of incoming energies (2-8 keV) in the low-energy regime. The three possible charge states (negative, positive, and neutral) are experimentally measured by using the low-energy ion scattering technique for two different collisional setups: 45° (90°) and 67.5° (67.5°) incoming (exit) angles, relative to the target surface plane, with a fixed backscattering angle of 135°. Experimental ion fraction magnitudes and energy dependence are practically intermediate between that found in pristine Cu(111) and a thick C60 film, revealing the influence of the substrate on the final charge state of the projectile. Unlike these previous systems, the positive and negative ions contribute nearly evenly to the total scattered charged particles. On the theoretical side, we applied a first-principles based model that considers the fine details of the surface under analysis and assumes a projectile trajectory corresponding to a single binary collision with the more exposed carbon atoms of the C60 molecule. The theoretical and experimental results are independently compared with the already reported cases: H+ on a thick C60 film, H+ on Cu(111), and H+ on graphite. A detailed analysis of the electronic surface band structure allows us to draw a conclusion about the relevance of the substrate in the present system and about the aspects to be improved in our theoretical description. The contrast between experimental and theoretical results allows us to infer that trajectories involving ion penetration and multiple scattering events are particularly relevant for the projectile-target charge exchange process studied.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CHARGE EXCHANGE
dc.subject
C60 MONOLAYER
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LOW ENERGY ION SCATTERING
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Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Electron capture and loss in the scattering of low-energy protons with a C60 monolayer deposited on Cu(111)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-20T15:49:42Z
dc.identifier.eissn
2469-9934
dc.journal.volume
103
dc.journal.number
6
dc.journal.pagination
1-15
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Quintero Riascos, Vanessa Alexandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
dc.description.fil
Fil: Tacca, Marcos Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
dc.description.fil
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
dc.description.fil
Fil: Gonzalez, C.. Universidad Complutense de Madrid; España
dc.description.fil
Fil: Goldberg, Edith Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
dc.description.fil
Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
dc.journal.title
Physical Review A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.103.062805
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.103.062805
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