The effect of the lateral interactions on the critical behavior of long straight rigid rods on two-dimensional lattices

doi:10.4279/pip.010005

Papers in Physics, Vol 1 (2009)

The effect of the lateral interactions on the critical behavior of long straight rigid rods on two-dimensional lattices

P. Longone, D. H. Linares, A. J. Ramirez-Pastor

Abstract

Using Monte Carlo simulations and finite-size scaling analysis, the critical behavior of attractive rigid rods of length $k$ ( $k$ -mers) on square lattices at intermediate density has been studied. A nematic phase, characterized by a big domain of parallel $k$ -mers, was found. This ordered phase is separated from the isotropic state by a continuous transition occurring at a intermediate density $\theta_c$ , which increases linearly with the magnitude of the lateral interactions.

Received: 9 July 2009, Accepted: 6 November 2009; Edited by: J. A. Bertolotto; DOI: 10.4279/PIP.010005

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