Abstract

The high-amplitude dynamic response of cantilever structures as used in scanning force microscopy was investigated as a function of the probe-sample distance. A computer simulation using the Muller-Yushchenko-Derjaguin/Burgess-Hughes-White (MYD/BHW) method applying realistic surface potentials including adhesion was done. The simulation providing dynamic force-distance curves allows us to attribute discontinuities observed in experimental amplitude-distance curves as the transition points from the purely attractive regime to the repulsive interaction near the lower inflection point of the vibrating probe. \textcopyright{} 1996 The American Physical Society.

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