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Are Steadily Moving Crystals Unstable?

Rangan Lahiri·Sriram Ramaswamy
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Abstract

We study the dynamics of small fluctuations about the uniform state of a crystal moving through a dissipative medium, e.g. a sedimenting colloidal crystal or a moving flux lattice, using a set of continuum equations for the displacement fields, and a one-dimensional driven lattice-gas model for the coupled concentration and tilt fields. For the colloidal crystal we predict a continuous nonequilibrium phase transition to a clumped state above a critical Peclet number.

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Rangan Lahiri, Sriram Ramaswamy. 1997-06-22. Are Steadily Moving Crystals Unstable?. https://doi.org/10.1103/physrevlett.79.1150

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