Collective Sliding States for Colloidal Molecular Crystals
arXiv:0812.2447 · doi:10.1103/PhysRevE.79.061403
Abstract
We study the driving of colloidal molecular crystals over periodic substrates such as those created with optical traps. The n-merization that occurs in the colloidal molecular crystal states produces a remarkably rich variety of distinct dynamical behaviors, including polarization effects within the pinned phase and the formation of both ordered and disordered sliding phases. Using computer simulations, we map the dynamic phase diagrams as a function of substrate strength for dimers and trimers on a triangular substrate, and correlate features on the phase diagram with transport signatures.
4 pages, 5 postscript figures
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Cited by in corpus (11)
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- Pattern Switching and Polarizability for Colloids in Optical Trap Arrays
- Colloidal ionic complexes on periodic substrates: ground state configurations and pattern switching
- Positive and Negative Drag, Dynamic Phases, and Commensurability in Coupled One-Dimensional Channels of Particles with Yukawa Interactions
- Dynamically Induced Locking and Unlocking Transitions in Driven Layered Systems with Quenched Disorder
- Vortex Transport and Pinning Effectiveness in Conformal Pinning Arrays
- The Effect of Pinning on Drag in Coupled One-Dimensional Channels of Particles
- Sliding states of a soft-colloid cluster crystal: Cluster versus single-particle hopping
- Friction, Free Axes of Rotation and Entropy
- Phase behaviour of colloidal assemblies on 2D corrugated substrates