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O: Fachverband Oberflächenphysik
O 104: Poster Session VIII: Scanning probe techniques: Method development III
O 104.6: Poster
Donnerstag, 4. März 2021, 13:30–15:30, P
Nonlinearities in force microscopy cantilever oscillations — •Lukas Böttcher1, Dominique Schneider1, Jens Starke2, Ingo Barke1, and Sylvia Speller1 — 1Institute of Physics, University of Rostock, 18059 Rostock — 2Institute of Mathematics, University of Rostock, 18051 Rostock
In dynamic force microscopy nonlinearities of the nanoprobe-surface interaction at small separations lead to deformed and bistable resonance curves of the cantilever oscillation [1-4]. To understand and control instable imaging conditions we acquire distance dependent frequency sweeps of the amplitude in dynamic atomic force-microscopy and determine frequencies of instability. We address the behavior on hard versus soft surfaces.
[1] Gleyzes et al. (1991), Appl. Phys. Lett. 58 (25), S. 2989*2991
[2] Hölscher, Schwarz (2007), International Journal of Non-Linear Mechanics 42 (4), S. 608*625
[3] Raman, et al. (2009), In: Morita, Giessibl und Wiesendanger (Hg.): Noncontact Atomic Force Microscopy: Volume 2. Berlin, Heidelberg: Springer Berlin Heidelberg, S. 361*395
[4] Stark (2010), Materials Today 13 (9), S. 24*32