Velocity Dependence of Atomic Friction

✍ Scribed by Gnecco, E.; Bennewitz, R.; Gyalog, T.; Loppacher, Ch.; Bammerlin, M.; Meyer, E.; Güntherodt, H.-J.

• Book ID: 120642454
• Publisher: The American Physical Society
• Year: 2000
• Tongue: English
• Weight: 266 KB
• Volume: 84
• Category: Article
• ISSN: 0031-9007
• DOI: 10.1103/PhysRevLett.84.1172

✦ Synopsis

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.