Critical exponents and universality for the isotropic-nematic phase transition in a system of self-assembled rigid rods on a lattice
| Autor: | López, L. G., Linares, D. H., Ramirez-Pastor, A. J. |
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| Rok vydání: | 2009 |
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| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevE.80.040105 |
| Popis: | Monte Carlo simulations have been carried out for a system of monomers on square lattices that, by decreasing temperature or increasing density, polymerize reversibly into chains with two allowed directions and, at the same time, undergo a continuous isotropic-nematic (I-N) transition. The results show that the self-assembly process affects the nature of the transition. Thus, the determination of the critical exponents indicates that the universality class of the I-N transition changes from two-dimensional Ising-type for monodisperse rods without self-assembly to q=1 Potts-type for self-assembled rods. Comment: 4 pages, 5 figures. Final version accepted for publication in PRE (Rapid Communications) |
| Databáze: | arXiv |
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