Universal Hydrodynamic Mechanisms for Crystallization in Active Colloidal Suspensions.

@article{Singh2016UniversalHM,
  title={Universal Hydrodynamic Mechanisms for Crystallization in Active Colloidal Suspensions.},
  author={Rajesh Singh and R. Adhikari},
  journal={Physical review letters},
  year={2016},
  volume={117 22},
  pages={
          228002
        }
}
The lack of detailed balance in active colloidal suspensions allows dissipation to determine stationary states. Here we show that slow viscous flow produced by polar or apolar active colloids near plane walls mediates attractive hydrodynamic forces that drive crystallization. Hydrodynamically mediated torques tend to destabilize the crystal but stability can be regained through critical amounts of bottom heaviness or chiral activity. Numerical simulations show that crystallization is not… CONTINUE READING
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