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 …

Mean-field model for a mixture of biaxial nematogens and dipolar nanoparticles

WGC Oropesa, ES Nascimento, AP Vieira - Physical Review E, 2024 - APS
We analyze a mean-field model for mixtures involving biaxial nematogens and dipolar
nanoparticles, taking into account not only orientational and isotropic pair interactions …

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 …

Lattice statistical models for the nematic transitions in liquid-crystalline systems

ES Nascimento, AP Vieira, SR Salinas - Brazilian Journal of Physics, 2016 - Springer
We investigate the connections between some simple Maier-Saupe lattice models, with a
discrete choice of orientations of the microscopic directors, and a recent proposal of a two …

Real-space renormalization-group treatment of the Maier-Saupe-Zwanzig model for biaxial nematic structures

CTG Dos Santos, AP Vieira, SR Salinas, RFS Andrade - Physical Review E, 2021 - APS
The Maier-Saupe-Zwanzig model for the nematic phase transitions in liquid crystals is
investigated in a diamond hierarchical lattice. The model takes into account a parameter to …

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 …

Phase diagrams of microscopic models for nematogenic mixtures

WGC Oropesa - 2023 - teses.usp.br
We employ different extensions of the mean-field Maier-Saupe model with discrete
orientational states to study the phase behavior of statistical models for nematogenic …

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 …

Magnetic field and dilution effects on the phase diagrams of simple statistical models for nematic biaxial systems

DD Rodrigues, AP Vieira, SR Salinas - Crystals, 2020 - mdpi.com
We use a simple statistical model to investigate the effects of an applied magnetic field and
of the dilution of site elements on the phase diagrams of biaxial nematic systems, with an …

Investigation of the Maier–Saupe–Zwanzig Model in the Apollonian Network

C TG dos Santos, A P. Vieira, S R. Salinas… - Brazilian Journal of …, 2023 - Springer
We analyze the thermodynamic behavior of a discrete version of the Maier–Saupe model for
the nematic phase transitions in liquid crystals in the Apollonian network. This simple model …