STUDY OF THEPt/Ru(0001)INTERFACE

P. J. Godowski (), Z. S. Li, J. Bork and J. Onsgaard
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P. J. Godowski: Institute of Experimental Physics, University of Wrocław, Pl. Maxa Borna 9, 50-204 Wrocław, Poland
Z. S. Li: Institute of Storage Ring Facilities, University of Aarhus, DK-8000 Aarhus, Denmark
J. Bork: Department of Physics and Nanotechnology, Aalborg University, DK-9220 Aalborg East, Denmark
J. Onsgaard: Department of Physics and Nanotechnology, Aalborg University, DK-9220 Aalborg East, Denmark

Surface Review and Letters (SRL), 2007, vol. 14, issue 05, 911-914

Abstract: The growth process of platinum onRu(0001)near room temperature was characterized using photoelectron spectroscopy of high resolution. The binding energy position and intensity of thePt4f7/2andRu3d5/2core levels as well as the shape and structure of the valence band spectra corresponding to the different stages of the deposition were analyzed. Up to ca. two adsorbate monolayers, the intensity changes of the peaks indicated layer-by-layer growth mode. The surface core level shifts ofRuandPtlevels were evaluated as -0.33 and -0.476 eV, respectively. The valence band spectra show a rather weak interaction between the d-bands ofPtandRu.

Keywords: Platinum; ruthenium; photoelectron spectroscopy; surface core level shift; surface structure (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1142/S0218625X07010378

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