Velocity Dependence of Atomic Friction

E. Gnecco, R. Bennewitz, T. Gyalog, Ch. Loppacher, M. Bammerlin, E. Meyer, and H.-J. Güntherodt
Phys. Rev. Lett. 84, 1172 – Published 7 February 2000
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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.

  • Received 13 August 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.1172

©2000 American Physical Society

Authors & Affiliations

E. Gnecco*, R. Bennewitz, T. Gyalog, Ch. Loppacher, M. Bammerlin, E. Meyer, and H.-J. Güntherodt

  • Institute of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland

  • *On leave from Department of Physics, University of Genova, Genova, Italy.
  • Electronic address: Ernst.Meyer@unibas.ch

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Vol. 84, Iss. 6 — 7 February 2000

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