ANGLE-RESOLVED PHOTOEMISSION FROM CU(001) - INFLUENCE OF ANGULAR RESOLUTION ON LINE-WIDTHS

Autor(en): MATZDORF, R
GOLDMANN, A
BRAUN, J
BORSTEL, G
Stichwörter: CU(111); DEPENDENCE; LINEWIDTHS; METALS; Physics; Physics, Condensed Matter; SPECTRA; SURFACE ELECTRONIC-STRUCTURE
Erscheinungsdatum: 1994
Herausgeber: PERGAMON-ELSEVIER SCIENCE LTD
Journal: SOLID STATE COMMUNICATIONS
Volumen: 91
Ausgabe: 2
Startseite: 163
Seitenende: 166
Zusammenfassung: 
In a recent study of angle-resolved photoemission from Cu(001) Aebi et al. [Solid State Commun. 88, 19 (1993)] investigated the influence of highest angular resolution on the experimental linewidths. They observe an unexplained dramatic narrowing of an s,p-band direct transition line, with the final electron state located in the second surface Brillouin Zone (SBZ). In contrast, almost no such narrowing is observed when the final state is located in the first SBZ, although the photohole initial state band is the same. We have performed calculations, which consistently explain all observations of Aebi et al. in terms of the bulk band structure, without the need to invoke additional broadening mechanisms as proposed by the authors.
ISSN: 00381098
DOI: 10.1016/0038-1098(94)90276-3

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