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Time-dependent density functional calculation of the energy loss of antiprotons colliding with metallic nanoshells

AuthorsQuijada, Marina; Borisov, Andrei G.; Díez Muiño, Ricardo
KeywordsElectron 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
Issue Date14-May-2008
PublisherJohn Wiley & Sons
CitationPhysica Status Solidi (a) 205, 1312 (2008).
AbstractTime-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.
Description5 pp.-- PACS nrs.: 71.10.Ca, 71.15.Mb, 73.22.-f, 78.70.-g.
Publisher version (URL)http://dx.doi.org/10.1002/pssa.200778157
Appears in Collections:(CFM) Artículos
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