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Título : Time-dependent density functional calculation of the energy loss of antiprotons colliding with metallic nanoshells
Autor : Quijada, Marina; Borisov, Andrei G.; Díez Muiño, Ricardo
Palabras clave : Electron gas, Fermi gas
Density functional theory, local density approximation, gradient and other corrections
Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Interactions of particles and radiation with matter
Fecha de publicación : 14-may-2008
Editor: John Wiley & Sons
Citación : Physica Status Solidi (a) 205, 1312 (2008).
Resumen: Time-dependent density functional theory is used to study the interaction between antiprotons and metallic nanoshells. The ground state electronic properties of the nanoshell are obtained in the jellium approximation. The energy lost by the antiproton during the collision is calculated and compared to that suffered by antiprotons traveling in metal clusters. The resulting energy loss per unit path length of material in thin nanoshells is larger than the corresponding quantity for clusters. It is shown that the collision process can be interpreted as the antiproton crossing of two nearly bi-dimensional independent metallic systems.
Descripción : 5 pp.-- PACS nrs.: 71.10.Ca, 71.15.Mb, 73.22.-f, 78.70.-g.
Versión del editor: http://dx.doi.org/10.1002/pssa.200778157
URI : http://hdl.handle.net/10261/7348
DOI: 10.1002/pssa.200778157
ISSN: 0031-8965
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