Comment on "Damping mechanism in dynamic force microscopy".
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Biomedical subjects
B Gotsmann
Publications and source records attributed to B Gotsmann.
Dynamic force spectroscopy of conservative and dissipative forces in an Al-Au(111) tip-sample system.
The conservative and dissipative interaction between an aluminum tip and a gold (111) surface were investigated using dynamic force spectroscopy in UHV. Complete force vs distance curves and friction coefficient vs distance curves were obtained quantitatively. The force curves were compared to the model by Muller, Yushenko, and Derjaguin, and long and short range interactions were subsequently quantified without fit parameters. A short range conservative interaction was separated from longer range van der Waals forces. The long range behavior of the damping coefficient obeys an inverse power law of third order.
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Dorofeyev, fuchs, and gotsmann reply:
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