1.
Phys Rev Lett
; 84(6): 1172-5, 2000 Feb 07.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11017471
RESUMO
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.