Maier-Saupe model for a mixture of uniaxial and biaxial molecules

ES Nascimento, EF Henriques, AP Vieira, SR Salinas - Physical Review E, 2015 - APS
We introduce shape variations in a liquid-crystalline system by considering an elementary
Maier-Saupe lattice model for a mixture of uniaxial and biaxial molecules. Shape variables …

Biaxial nematic phase in the Maier-Saupe model for a mixture of discs and cylinders

EF Henriques, SR Salinas - The European Physical Journal E, 2012 - Springer
We analyze the global phase diagram of a Maier-Saupe lattice model with the inclusion of
shape-disordered degrees of freedom to mimic a mixture of oblate and prolate molecules …

Elementary lattice models for the nematic transitions in liquid-crystalline systems

SR Salinas, ES Nascimento - Molecular Crystals and Liquid …, 2017 - Taylor & Francis
ABSTRACT The Maier-Saupe theory of the nematic phase transitions, with the requirement
that the molecular directors are restricted to the Cartesian axes, can be formulated as a fully …

Statistical models of mixtures with a biaxial nematic phase

E Do Carmo, DB Liarte, SR Salinas - Physical Review E, 2010 - APS
We consider a simple Maier-Saupe statistical model with the inclusion of disorder degrees of
freedom to mimic the phase diagram of a mixture of rodlike and disklike molecules. A …

Phase behavior of a lattice-gas model for biaxial nematics

WGC Oropesa, ES Nascimento, AP Vieira - Physical Review E, 2022 - APS
We employ a lattice-gas extension of the Maier-Saupe model with discrete orientation states
to study the phase behavior of a statistical model for biaxial nematogenic units in mean-field …

Phase diagram of a model for a binary mixture of nematic molecules on a Bethe lattice

E Do Carmo, AP Vieira, SR Salinas - Physical Review E, 2011 - APS
We investigate the phase diagram of a discrete version of the Maier-Saupe model with the
inclusion of additional degrees of freedom to mimic a distribution of rodlike and disklike …

The formation of biaxial nematic phases in binary mixtures of thermotropic liquid-crystals composed of uniaxial molecules

RA Skutnik, L Lehmann, S Püschel-Schlotthauer… - Molecular …, 2019 - Taylor & Francis
Monte Carlo simulations in the isothermal-isobaric ensemble are used to investigate the
formation of an ordered, biaxial nematic phase in a binary mixture of thermotropic liquid …

Field-induced uniaxial and biaxial nematic phases in the Maier–Saupe–Zwanzig (MSZ) lattice model

A Petri, SR Salinas - Liquid Crystals, 2018 - Taylor & Francis
We report detailed statistical mechanics calculations to analyse the field-temperature phase
diagram of a fully connected Maier–Saupe–Zwanzig (MSZ) lattice model for the nematic …

Nematic-liquid-crystal order—a Monte Carlo calculation

PA Lebwohl, G Lasher - Physical Review A, 1972 - APS
The lattice version of the Maier-Saupe model of a nematic liquid crystal, in which all
molecules are restricted to be on a simple-cubic lattice with periodic boundary conditions …

A model nematic liquid crystal revisited: some new phase diagrams from density-functional theory

PIC Teixeira, MM Telo da Gama - Molecular Physics, 1995 - Taylor & Francis
We have reconsidered a simple Maier-Saupe model of a nematic liquid crystal introduced by
one of us a few years ago. A systematic exploration of the phase diagram using density …