Dresden 2003 – wissenschaftliches Programm
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O: Oberflächenphysik
O 21: Adsorption an Oberfl
ächen II
O 21.7: Vortrag
Dienstag, 25. März 2003, 16:30–16:45, HSZ/03
Tunneling Spectroscopy of a Molecular Wire — •X. Ge1, J. Kuntze1, L. Limot1, R. Berndt1, P. Jiang2, A. Gourdon2, and C. Joachim2 — 1Institut für Experimentelle und Angewandte Physik der Universität Kiel, D-24098 Kiel — 2CEMES-CNRS, F-31055 Toulouse Cedex
We have performed scanning tunneling microscopy and spectroscopy (STM/STS) operating at 5K in UHV on a synthetic molecular wire (No-dqlanderNo-dq molecule) to characterize its structural and electronic properties. Tunneling spectroscopy of single molecules adsorbed on Cu(100), Ag(111), and Cu3Au(100) reveals a substrate dependent molecular gap. Measured spectra are compared with electronic structure calculations based on the molecular conformations extracted from STM images.