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O: Fachverband Oberflächenphysik
O 13: Electronic structure II
O 13.4: Talk
Monday, March 23, 2009, 15:45–16:00, SCH A216
Surface reconstruction and energy gap of superconducting V3Si(001) — •Nadine Hauptmann, Michael Becker, Jörg Kröger, and Richard Berndt — Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany
Scanning tunneling microscopy of the superconductor V3Si(001) reveals a yet unknown surface reconstruction which is most likely induced by carbon. We suggest a structural model for the reconstructed surface, which is consistent with experimental data obtained by scanning tunneling microscopy and Auger electron spectroscopy. Superconductivity of the reconstructed sample persists as monitored by scanning tunneling spectroscopy of the superconducting energy gap. Financial support by the DFG is gratefully acknowledged.