Berlin 2015 – scientific programme
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O: Fachverband Oberflächenphysik
O 35: Nanostructures at Surfaces
O 35.2: Poster
Tuesday, March 17, 2015, 18:15–21:00, Poster A
Deposition of small clusters on oxide films and investigation of their mobility — •Raphael Floegel1, Christoph Schröder1, Dominik Wolter1, Matthias Bohlen1, Conrad Becker2, and Heinz Hövel1 — 1Fakultät Physik / DELTA, Technische Universität Dortmund, Germany — 2Aix-Marseille Université, CINaM, Marseille, France
Metal oxides have many applications (catalysis, microelectronics etc.). Al2O3 oxide films produced by oxidation of Ni3Al(111) can be used as a template for cluster growth. [1] They are characterised with Low-Energy Electron Diffraction (LEED) and Scanning Tunneling Microscopy (STM).
Oxide films are also favourable for the study of deposited clusters because on the one hand the clusters are only marginally influenced by the substrate surface. On the other hand thin oxide films can still be characterised with STM. By the deposition of small mass selected clusters on the produced oxide films a systematic investigation of their mobility and coalescence depending on their size can be performed.
[1] S. Degen, C. Becker and K. Wandelt, Faraday Discuss., 125, 343-356 (2004).