Separation and fractionation of order and disorder in highly polydisperse systems
arXiv:0910.4924 · doi:10.1103/PhysRevE.82.021501
Abstract
Microcanonical Monte Carlo simulations of a polydisperse soft-spheres model for liquids and colloids have been performed for very large polydispersity, in the region where a phase-separation is known to occur when the system (or part of it) solidifies. By studying samples of different sizes, from N=256 to N=864, we focus on the nature of the two distinct coexisting phases. Measurements of crystalline order in particles of different size reveal that the solid phase segregates between a crystalline solid with cubic symmetry and a disordered phase. This phenomenon is termed fractionation.
8 pages, 5 figures
References in corpus (8)
- Probing the equilibrium dynamics of colloidal hard spheres above the mode-coupling glass transition
- Crystallization of hard-sphere glasses
- Crystalline phases of polydisperse spheres
- Phase transition in the three dimensional Heisenberg spin glass: Finite-size scaling analysis
- Fractionation effects in phase equilibria of polydisperse hard sphere colloids
- Microcanonical Approach to the Simulation of First-Order Phase Transitions
- Phase diagram of a polydisperse soft-spheres model for liquids and colloids
- First order transition in a three dimensional disordered system
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- Local order and crystallization of dense polydisperse hard spheres
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