Frustration and Melting of Colloidal Molecular Crystals
arXiv:cond-mat/0210311 · doi:10.1088/0305-4470/36/22/303
Abstract
Using numerical simulations we show that a variety of novel colloidal crystalline states and multi-step melting phenomena occur on square and triangular two-dimensional periodic substrates. At half-integer fillings different kinds of frustration effects can be realized. A two-step melting transition can occur in which individual colloidal molecules initially rotate, destroying the overall orientational order, followed by the onset of interwell colloidal hopping, in good agreement with recent experiments.
arXiv comment6 pages, 3 postscript figures. Procedings of International Conference on Strongly Coupled Coulomb Systems, Santa Fe, 2002
References in corpus (4)
- Computer-Generated Holographic Optical Tweezer Arrays
- Novel Colloidal Crystalline States on Two Dimensional Periodic Substrates
- Radial fluctuations induced stabilization of the ordered state in two dimensional classical clusters
- Commensurate and Incommensurate Vortex Lattice Melting in Periodic Pinning Arrays
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- Systematic Analysis of Crystalline Phases in Bosonic Lattice Models with Algebraically Decaying Density-Density Interactions
- Tricriticality for dimeric Coulomb molecular crystals in ground state