Regensburg 2022 – wissenschaftliches Programm
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PLV IV: Plenarvortrag
Dienstag, 6. September 2022, 08:30–09:15, H1
Insights from Atomic-Scale Studies on Surfaces — •Ulrike Diebold — Institute of Applied Physics, TU Wien, Vienna, Austria
The arrangement of the top layer of atoms on a solid and the resulting electronic and chemical properties affect and sometimes even dominate its functionality. In the talk, I will showcase how we can use basic physical phenomena -- tunneling, diffraction, and change in resonance frequencies -- to measure surface properties in an atom-by-atom fashion. Such experiments can be interlinked tightly with theoretical computations by investigating well-defined samples in a controlled environment. Examples include assessing the acidity of individual surface atoms, pushing the size of catalytically-active nanoclusters to their physical limit, and extending ultrahigh-vacuum experiments to the liquid phase.