Journal article
PAX and HREELS studies of the Pt(111) /Ag surface



Publication Details
Authors:
Feydt, J.; Elbe, A.; Meister, G.; Goldmann, A.
Publication year:
2000
Journal:
Surface Science
Pages range:
115-122
Volume number:
445
ISSN:
0039-6028

Abstract
We have characterized the Pt(111)/Ag surface at silver coverages II monolayer (ML) using photoemission of adsorbed xenon to monitor the local work function and high-resolution electron energy loss spectroscopy (HREELS) to observe the vibration frequency of CO molecules chemisorbed on Pt sites. All our results are consistent with the intermixing model derived from scanning tunnelling microscopy observations (H. Roder et al., Phys. Rev. Lett. 71 (1993) 2086). The HREELS data indicate that the strong vibrational red shift (7.6 meV) of the C-O stretch Vibration observed on the Pt islands with increasing silver coverage may be correlated with coverage-dependent surface strain. (C) 2000 Elsevier Science B.V. All rights reserved.

Last updated on 2019-01-11 at 16:05