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Faraggi, M.N.; Gravielle, M.S.; Alducin, M.; Juaristi, J.I.; Silkin, V.M. "Band-structure-based collisional model for electronic excitations in ion-surface collisions" (2005) Physical Review A - Atomic, Molecular, and Optical Physics. 72(1)
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Abstract:

Energy loss per unit path in grazing collisions with metal surfaces is studied by using the collisional and dielectric formalisms. Within both theories we make use of the band-structure-based (BSB) model to represent the surface interaction. The BSB approach is based on a model potential and provides a precise description of the one-electron states and the surface-induced potential. The method is applied to evaluate the energy lost by 100 keV protons impinging on aluminum surfaces at glancing angles. We found that when the realistic BSB description of the surface is used, the energy loss obtained from the collisional formalism agrees with the dielectric one, which includes not only binary but also plasmon excitations. The distance-dependent stopping power derived from the BSB model is in good agreement with available experimental data. We have also investigated the influence of the surface band structure in collisions with the Al(100) surface. Surface-state contributions to the energy loss and electron emission probability are analyzed. © 2005 The American Physical Society.

Registro:

Documento: Artículo
Título:Band-structure-based collisional model for electronic excitations in ion-surface collisions
Autor:Faraggi, M.N.; Gravielle, M.S.; Alducin, M.; Juaristi, J.I.; Silkin, V.M.
Filiación:Instituto de Astronom y Fisica del Espacio, CONICET, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Departamento de Fisica, FCEN, Universidad de Buenos Aires, Buenos Aires, Argentina
Donostia International Physics Center DIPC, P. Manuel de Lardizabal 4, 20018 San Sebastin, Spain
Departamento de Fisica de Materiales, Facultad de Quimicas, UPV/EHU, Apartado 1072, 20080 San Sebastin, Spain
Unidad de Fisica de Materiales, Centro Mixto CSIC-UPV/EHU, UPV/EHU, Apartado 1072, 20080 San Sebastin, Spain
Palabras clave:Band-structure-based (BSB) model; Plasmon excitations; Surface-state contributions; Aluminum; Band structure; Dielectric materials; Energy dissipation
Año:2005
Volumen:72
Número:1
DOI: http://dx.doi.org/10.1103/PhysRevA.72.012901
Título revista:Physical Review A - Atomic, Molecular, and Optical Physics
Título revista abreviado:Phys Rev A
ISSN:10502947
CODEN:PLRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v72_n1_p_Faraggi

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Citas:

---------- APA ----------
Faraggi, M.N., Gravielle, M.S., Alducin, M., Juaristi, J.I. & Silkin, V.M. (2005) . Band-structure-based collisional model for electronic excitations in ion-surface collisions. Physical Review A - Atomic, Molecular, and Optical Physics, 72(1).
http://dx.doi.org/10.1103/PhysRevA.72.012901
---------- CHICAGO ----------
Faraggi, M.N., Gravielle, M.S., Alducin, M., Juaristi, J.I., Silkin, V.M. "Band-structure-based collisional model for electronic excitations in ion-surface collisions" . Physical Review A - Atomic, Molecular, and Optical Physics 72, no. 1 (2005).
http://dx.doi.org/10.1103/PhysRevA.72.012901
---------- MLA ----------
Faraggi, M.N., Gravielle, M.S., Alducin, M., Juaristi, J.I., Silkin, V.M. "Band-structure-based collisional model for electronic excitations in ion-surface collisions" . Physical Review A - Atomic, Molecular, and Optical Physics, vol. 72, no. 1, 2005.
http://dx.doi.org/10.1103/PhysRevA.72.012901
---------- VANCOUVER ----------
Faraggi, M.N., Gravielle, M.S., Alducin, M., Juaristi, J.I., Silkin, V.M. Band-structure-based collisional model for electronic excitations in ion-surface collisions. Phys Rev A. 2005;72(1).
http://dx.doi.org/10.1103/PhysRevA.72.012901