The nature of the orientational phase transition in the three-dimensional Lebwohl-Lasher model of liquid crystals has been studied by computer simulation using reweighting techniques and finite-size scaling analysis. Unambiguous numerical evidence is found in favor of a weak first-order transition and the presence of pseudospinodal points, T±*, which are extremely close to the equilibrium transition temperature, ‖Tc-T±*‖/Tc≲0.5×10-3, in good agreement with experimental data for the nematic-isotropic transition.
Bibliographical noteCopyright (1992) by the American Physical Society.
- ANISOTROPIC SYSTEMS
Zhang, Z., Mouritsen, O. G., & Zuckermann, M. J. (1992). Weak first-order orientational transition in the Lebwohl-Lasher model for liquid crystals. Physical Review Letters, 69(19), 2803-2806. https://doi.org/10.1103/PhysRevLett.69.2803