Velocity dependence of atomic friction |
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| Authors: | Gnecco Bennewitz Gyalog Loppacher Bammerlin Meyer Guntherodt |
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| Institution: | Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland. |
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| Abstract: | Sliding friction between the tip of a friction force microscope and NaCl(100) was studied to deduce the velocity dependence of friction forces on the atomic scale. A logarithmic dependence of the mean friction force is revealed at low velocities. The experimental data are interpreted in terms of a modified Tomlinson model which is based on reaction rate theory. |
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