Weak first-order orientational transition in the Lebwohl-Lasher model for liquid crystals

Zhengping Zhang, Ole G. Mouritsen, Martin J. Zuckermann

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Abstract

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.
Original languageEnglish
JournalPhysical Review Letters
Volume69
Issue number19
Pages (from-to)2803-2806
ISSN0031-9007
DOIs
Publication statusPublished - 1992

Bibliographical note

Copyright (1992) by the American Physical Society.

Keywords

  • MONTE-CARLO
  • ANISOTROPIC SYSTEMS
  • SIMULATIONS
  • PHASE-TRANSITIONS

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