HIGH RESOLUTION CORE LEVEL SPECTROSCOPY AT THE Cu/Ru(0001) INTERFACE

T. H. Andersen, L. Bech, J. Onsgaard, S. V. Hoffmann and Z. Li
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T. H. Andersen: Physics Department, University of Southern Denmark, Odense University, Campusvej 55, DK-5230 Odense M, Denmark
L. Bech: Physics Department, University of Southern Denmark, Odense University, Campusvej 55, DK-5230 Odense M, Denmark
J. Onsgaard: Institute of Physics, Aalborg University, DK-9220 Aalborg Øst, Denmark
S. V. Hoffmann: Institute for Storage Ring Facilities, University of Aarhus, DK-8000 Aarhus C, Denmark
Z. Li: Institute for Storage Ring Facilities, University of Aarhus, DK-8000 Aarhus C, Denmark

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 723-727

Abstract: Copper adsorption on Ru(0001) has been studied by synchrotron radiation. The clean Ru3d5/2spectra were found to consist of two components with a binding energy shift of 400 meV. The component with the lower binding energy represents the first layer of ruthenium atoms. Adsorption of copper gives rise to core level shifts of the Ru3d5/2components, which were studied as a function of Cu coverage. Experiments were carried out with copper coverages varying from the submonolayer range up to two monolayers of copper. The binding energy of the Cu2p3/2level was measured by X-ray photoemission spectroscopy.

Date: 2002
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DOI: 10.1142/S0218625X02002798

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