Dresden 2009 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 27: Poster Session I (Methods: Scanning probe techniques; Methods: Atomic and electronic structure; Methods: Molecular simulations and statistical mechanics; Oxides and Insulators: Clean surfaces; Oxides and Insulators: Adsorption; Oxides and Insulators: Epitaxy and growth; Semiconductor substrates: Clean surfaces; Semiconductor substrates: Epitaxy and growth; Semiconductor substrates: Adsorption; Nano- optics of metallic and semiconducting nanostructures; Electronic structure; Methods: Electronic structure theory; Methods: other (experimental); Methods: other (theory); Solutions on surfaces; Epitaxial Graphene; Surface oder interface magnetism; Phase transitions; Time-resolved spectroscopies)
O 27.12: Poster
Dienstag, 24. März 2009, 18:30–21:00, P2
Microscopically high speed friction measurements — •Fengzhen Zhang1, Othmar Marti1, Stefan Walheim2, and Thomas Schimmel2,3 — 1Institute of Experimental Physics, Ulm University, 89069 Ulm — 2Forschungszentrum Karlsruhe — 3University of Karlsruhe
Quartz crystals have been found to be the best substrates for the Atomic Force Microscopy (AFM) high speed friction measurements. To prove the oscillation of the quartz crystals, we prepared Fischer Patterns on the surface. During the oscillation of the quartz crystals, the topographies of the Fischer Pattern show clearly the oscillation information (in tapping mode AFM). The result of the comparison of the friction under different oscillation speeds and after oscillation will be discussed. We will also present the measurement data of friction at high speeds of surfaces without and with adsorbed monolayers.