Interaction potential and hopping dynamics governing sliding friction
- 21 August 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 91 (8), 084502
- https://doi.org/10.1103/PhysRevLett.91.084502
Abstract
The friction force on a nanometer-sized tip sliding on a surface is related to the thermally activated hopping of the contact atoms on an effective atomic interaction potential. A general analytical expression relates the height of this potential and the hopping attempt frequency to measurements of the velocity dependence of the friction force performed with an atomic force microscope. While the height of the potential is roughly proportional to the normal load, the attempt frequency falls in the range of mechanical eigenfrequencies of the probing tip in contact with the surface.This publication has 22 references indexed in Scilit:
- Thermal Effects on Atomic FrictionPhysical Review Letters, 2001
- Velocity Dependence of Atomic FrictionPhysical Review Letters, 2000
- Nanoscale Science of Single Molecules Using Local ProbesScience, 1999
- Microscopic view of epitaxial metal growth: nucleation and aggregationSurface Science Reports, 1998
- Analysis of experimental load dependence of two-dimensional atomic-scale frictionPhysical Review B, 1998
- Self-lubrication in scanning-force-microscope image formation on ionic surfacesPhysical Review B, 1997
- Simulations of atomic-scale sliding frictionPhysical Review B, 1996
- Diffusion of adsorbates on metal surfacesReports on Progress in Physics, 1990
- First-principles theory of atomic-scale frictionPhysical Review Letters, 1990
- Structural and dynamical consequences of interactions in interfacial systemsJournal of Vacuum Science & Technology A, 1989