Layer dependent core level binding energy shifts : Na, K, Rb and Cs on Al(111)
Författare
Summary, in English
Layer resolved core level spectra are presented for Na, K, Rb and Cs films on Al(111). From the development of the spectra, it is possible to distinguish emission from alkali atoms at the interface, in the bulk, and at the surface of the adsorbed layers. The core level binding energy shifts are discussed in terms of adhesion and interface segregation energies. It is found experimentally that the Al induced core level binding energy shifts of the alkalis are increasing with increasing atomic number of the alkali metal. This trend is qualitatively reproduced by semi-empirical calculations.
Avdelning/ar
Publiceringsår
1993-01-20
Språk
Engelska
Sidor
83-90
Publikation/Tidskrift/Serie
Surface Science
Volym
281
Issue
1-2
Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0039-6028