Photoelectron spectroscopy of Ar/Cu(100) interface states |
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Authors: | M. Rohleder W. Berthold J. Güdde U. Höfer |
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Affiliation: | 1.Fachbereich Physik und Zentrum für Materialwissenschaften,Philipps-Universit?t,Marburg,Germany |
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Abstract: | Buried interface states in Ar/Cu(100) were studied by means of one- and two-photon photoemission experiments. With increasing Ar overlayer thickness, a transition from broad electron scattering resonances in the Ar conduction band into a hydrogen-like series of quasi-bound states at the Ar/Cu interface was observed. The thickness dependence of energies and lifetimes is compared to theoretical resonance positions and linewidths derived from a parameterized one-dimensional potential. PACS 73.20.-r; 73.40.Ns; 79.60.-i; 78.47.+p |
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