Velocity Dependence of Atomic Friction
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Gnecco, E.; Bennewitz, R.; Gyalog, T.; Loppacher, Ch.; Bammerlin, M.; Meyer, E.;
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Article
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2000
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The American Physical Society
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English
⚖ 266 KB
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 m