Are Steadily Moving Crystals Unstable

@article{Lahiri1996AreSM,
  title={Are Steadily Moving Crystals Unstable},
  author={Rangan Lahiri and Sriram Ramaswamy},
  journal={Physical Review Letters},
  year={1996},
  volume={79},
  pages={1150-1153}
}
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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