Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer

Enzo Granato; S. C. Ying

doi:10.1103/physrevlett.85.5368

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Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer

Enzo Granato·S. C. Ying

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Abstract

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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Enzo Granato, S. C. Ying. 2000-11-27. Transverse thermal depinning and nonlinear sliding friction of an adsorbed monolayer. https://doi.org/10.1103/physrevlett.85.5368

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