Collective stochastic resonance in shear-induced melting of sliding bilayers

Abstract

The far-from-equilibrium dynamics of two crystalline two-dimensional monolayers driven past each other is studied using Brownian dynamics simulations. While at very high and low driving rates the layers slide past one another retaining their crystalline order, for intermediate range of drives the system alternates irregularly between the crystalline and fluid-like phases. A dynamical phase diagram in the space of interlayer coupling and drive is obtained. A qualitative understanding of this stochastic alternation between the liquid-like and crystalline phases is proposed in terms of a reduced model within which it can be understood as a stochastic resonance for the dynamics of collective order parameter variables. This remarkable example of stochastic resonance in a spatially extended system should be seen in experiments which we propose in the paper.

arXiv comment12 pages, 18 eps figures, minor changes in text and labelling of figures, accepted for publication in Phys. Rev. E

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Cited by in corpus (4)

• Statistical analysis of self-similar behaviour in the shear induced melting model
• Positive and Negative Drag, Dynamic Phases, and Commensurability in Coupled One-Dimensional Channels of Particles with Yukawa Interactions
• The Effect of Pinning on Drag in Coupled One-Dimensional Channels of Particles
• Phenomenological model for a novel melt-freeze phase of sliding bilayers