English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/102491
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

Many-body study of ionic states in adsorption systems: Cl-Si(100)-(2 × 1)

AuthorsRefolio, M. C.; López Sancho, José María ; Rubio, J. ; López-Sancho, María Pilar
KeywordsSilicon
Semiconducting surfaces
Photoelectron spectroscopy
Many body quasi-particle theories
Green's function methods
Desorption induced by electronic transitions (DIET)
Chemisorption
Chlorine
Issue Date1997
PublisherElsevier
CitationSurface Science 372: L279- L284 (1997)
AbstractIn this Letter we study the excited states formed upon removal of one electron from the Cl-Si(100)-(2 × 1) adsorption system. Their excitation energies, charge distributions and excitation mechanisms are discussed by means of a many-body approach specially suited to take into account the possibility of hole localization. The main emphasis is given to the threshold energies of Cl+ desorption. It is found that only some one-hole excitations are sufficiently long-lived to survive all the way out to vacuum and thus lead to Cl+ desorption. This long life is conferred by the presence of localized electron-hole pairs (eh) in the final state. The screening electron, placed in the antibonding level of the bond, stabilizes both the primary hole and its partner hole in the eh pair. Our calculated density of states for the adsorbate in the valence region agrees with the photoemission spectrum, in contrast with previous calculations. 1997 Elsevier Science B.V.
URIhttp://hdl.handle.net/10261/102491
DOI10.1016/S0039-6028(96)01236-8
Identifiersdoi: 10.1016/S0039-6028(96)01236-8
issn: 0039-6028
Appears in Collections:(ICMM) Artículos
(CFMAC-IFF) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe 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.