Physics – Condensed Matter – Materials Science
Scientific paper
2001-04-02
Physics
Condensed Matter
Materials Science
13 pages, 13 figures
Scientific paper
10.1103/PhysRevB.64.035413
The static friction between crystalline surfaces separated by a molecularly thin layer of adsorbed molecules is calculated using molecular dynamics simulations. These molecules naturally lead to a finite static friction that is consistent with macroscopic friction laws. Crystalline alignment, sliding direction, and the number of adsorbed molecules are not controlled in most experiments and are shown to have little effect on the friction. Temperature, molecular geometry and interaction potentials can have larger effects on friction. The observed trends in friction can be understood in terms of a simple hard sphere model.
He Gang
Robbins Mark. O.
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