2007
DOI: 10.1103/physrevlett.98.085702
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Phase Diagram of a Polydisperse Soft-Spheres Model for Liquids and Colloids

Abstract: The phase diagram of soft spheres with size dispersion is studied by means of an optimized Monte Carlo algorithm which allows us to equilibrate below the kinetic glass transition for all size distributions. The system ubiquitously undergoes a first-order freezing transition. While for a small size dispersion the frozen phase has a crystalline structure, large density inhomogeneities appear in the highly disperse systems. Studying the interplay between the equilibrium phase diagram and the kinetic glass transit… Show more

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Cited by 40 publications
(59 citation statements)
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“…16,23 In these observations, disorder is being induced by size polydispersity. Regarding SALR colloids, however, the effect of polydispersity has not been addressed so far.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…16,23 In these observations, disorder is being induced by size polydispersity. Regarding SALR colloids, however, the effect of polydispersity has not been addressed so far.…”
Section: Resultsmentioning
confidence: 99%
“…17 and 21. To examine the inuence of polydispersity on the experimentally observed structure, we perform MD simulations. In our simulations, a rectangular size distribution as used in previous studies 22,23 is employed. The size distribution of the particles in terms of their diameter is dened by…”
mentioning
confidence: 99%
“…The behavior of such polydisperse nanometric dispersions points to directions that have not been explored thus far, despite theoretical predictions [49,[51][52][53][54]60]. We demonstrate here fractionated crystallization, with the coexistence of at least three very different phases (liquid, bcc, and Laves), and the formation of complex crystals that efficiently utilize the full size distribution.…”
mentioning
confidence: 81%
“…The key enabling factor of our computational approach is the combination of swap Monte-Carlo moves to standard single-particle translations [18][19][20], which is a simple instance of a cluster move [21,22]. Swap moves enhance thermalization in simple mixtures [23], but their efficiency is significantly higher in continuously polydisperse systems [24][25][26]. We show that this optimized sampling method allows to thermalize polydisperse hard spheres up to unprecedentedly-large densities.…”
mentioning
confidence: 99%