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Phase diagram of a polydisperse soft-spheres model for liquids and colloids

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Fernández Pérez, Luis Antonio and Martín Mayor, Víctor and Verrocchio, P. (2007) Phase diagram of a polydisperse soft-spheres model for liquids and colloids. Physical review letters, 98 (8). ISSN 0031-9007

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Official URL: http://doi.org/10.1103/PhysRevLett.98.085702


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http://journals.aps.org/Publisher


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 transition, we argue that the experimentally found terminal polydispersity of colloids is a purely kinetic phenomenon.


Item Type:Article
Additional Information:

© 2007 The American Physical Society. We thank V. Erokhin and F. Zamponi for discussions. We were supported by MEC (Spain), through Contracts No. BFM2003-08532, No. FIS2004-05073, No. FPA2004- 02602, CAM (CAM-910383), and by BSCH—UCM. The CPU time utilized (at BIFI and CINECA) amounts to 10 years of 3 GHz PentiumIV

Uncontrolled Keywords:Hard-spheres; Transitions; Surface.
Subjects:Sciences > Physics
Sciences > Physics > Physics-Mathematical models
ID Code:38329
Deposited On:05 Jul 2016 08:10
Last Modified:05 Jul 2016 08:10

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