English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/102405
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Ab initio study of low-energy collective electronic excitations in bulk Pb

AuthorsZubizarreta, X. ; Silkin, Viatcheslav M.; Chulkov, Eugene V.
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review B 87: 115112 (2013)
AbstractA theoretical study of the dynamical dielectric response of bulk lead at low energies is presented. The calculations are performed with full inclusion of the electronic band structure calculated by means of a first-principles pseudopotential approach. The effect of inclusion of the spin-orbit interaction in the band structure on the excitation spectra in Pb is analyzed, together with dynamical exchange-correlation and local-field effects. In general, results show significant anisotropy effects on the dielectric response of bulk Pb. At small momentum transfers along three different high-symmetry directions, the calculated excitation spectra present several peaks with strong acousticlike dispersion in the energy range below 2 eV. The analysis shows that only one of such modes existing at momentum transfers along the Γ-K direction can be interpreted as a true acousticlike plasmon, whereas all other modes are originated from the enhanced number of intraband electron-hole excitations at corresponding energies. Comparison with available optical experimental data shows good agreement. © 2013 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.87.115112
URIhttp://hdl.handle.net/10261/102405
DOI10.1103/PhysRevB.87.115112
Identifiersdoi: 10.1103/PhysRevB.87.115112
issn: 1098-0121
e-issn: 1550-235X
Appears in Collections:(CFM) Artículos
Files in This Item:
File Description SizeFormat 
Ab initio study of low-energy.pdf3,38 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.