Regensburg 2013 – scientific programme
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O: Fachverband Oberflächenphysik
O 44: Scanning Probe Methods I
O 44.2: Talk
Wednesday, March 13, 2013, 10:45–11:00, H33
Friction induced self-excited cantilever resonance oscillation — •Felix Mertens, Thomas Göddenhenrich, and André Schirmeisen — Institut für Angewandte Physik, Justus-Liebig-Universität Gießen, D-35392 Gießen
The modulation of a sample in the direction of the cantilever long axis leads to bending oscillations of the lever if the tip is in contact with the surface1. The lever response oscillation essentially depends on the modulation amplitude and the modulation frequency. Experimental and simulated data indicate that a modulation frequency well below the resonance frequency of the lever and a sufficient modulation amplitude for stick-slip motions of the tip causes a lever response oscillation containing the modulation frequency as well as the self-excited bending resonance frequency of the lever. 1T. Göddenhenrich, S. Müller, and C.Heiden, Rev. Sci. Instrum. 65, 2870 (1994)