Berlin 2024 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 31: Poster: Organic Molecules on Inorganic Substrates

O 31.10: Poster

Dienstag, 19. März 2024, 18:00–20:00, Poster C

Enhanced conductance of molecular states at interstitial sites — Jan Homberg¹, Manuel Gruber², Alexander Weismann¹, and •Richard Berndt¹ — ¹Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel — ²Fakultät für Physik, Universität Duisburg-Essen

Arrays of phthalocyanine molecules on Pb(100) are investigated with scanning tunneling microscopy. Maps of the differential conductance exhibit drastic changes as the sample voltage is being varied. Maximal conductances are observed at positions between the molecules mimicking bonding states. However, the maxima are shown to result from a superposition of non-interacting states. We expect that this effect may be observed from many other molecules.

Keywords: Scanning tunneling microscopy; organic molecules