CO-Induced Photoemission Structures of the CO/Pt/Ru(0001) Interface
P.J. Godowskia, J. Onsgaard b and Z.-S. Li c
aInstitute of Experimental Physics, University of Wrocław, Pl. M. Borna 9, 50-204 Wrocław, Poland
bDepartment of Physics and Nanotechnology, Aalborg University, DK-9220 Aalborg East, Denmark
cInstitute of Storage Ring Facilities, University of Aarhus, DK-8000 Aarhus, Denmark
Received: May 12, 2016; In final form: November 24, 2016
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The CO/Pt/Ru(0001) interface has been re-examined, in great detail, by photoelectron spectroscopy of high resolution under UHV conditions. The Ru(0001) substrate has been modified by platinum at coverages less than corresponding to the one, saturated, Pt overlayer, with no Pt/Ru intermixing. The analysis of the extent to which different regions of the photoelectron spectrum allow a detailed characterization of the interface is presented. The CO adsorption displays interaction with two separate phases: the Pt(111) face and the Ru(0001) surface.

DOI: 10.12693/APhysPolA.130.1389
PACS numbers: 79.60.Jv, 33.60.+q, 82.80.Pv