Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer

Details Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer

2000-11-27

arxiv.org/abs/cond-mat/0011432v1

Phys. Rev. Lett. 85, 5368 (2000)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.85.5368

We study the response of an adsorbed monolayer under a driving force as a model of sliding friction phenomena between two crystalline surfaces with a boundary lubrication layer. Using Langevin-dynamics simulation, we determine the nonlinear response in the direction transverse to a high symmetry direction along which the layer is already sliding. We find that below a finite transition temperature, there exist a critical depinning force and hysteresis effects in the transverse response in the dynamical state when the adlayer is sliding smoothly along the longitudinal direction.

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