We study a discrete version of a biaxial nematic liquid crystal model with external fields via
an approach based on the solution of differential identities for the partition function. In the …

We examine the ordering properties of rectangular hard rods with length L and diameter D at
a single planar wall and between two parallel hard walls using the second virial density …

The paradigm of spontaneous symmetry breaking encompasses the breaking of the
rotational symmetries O (3) of isotropic space to a discrete subgroup, ie, a three-dimensional …

The first theoretical observation of the tricritical point for the isotropic to biaxial nematic
phase transition of biaxial nematic liquid crystals in the presence of an external field is …

We present a simple mean-field theory to study the effects of an external magnetic field on
biaxial nematic liquid crystals. Isotropic-uniaxial nematic-biaxial nematic phase sequence in …

In a previous paper [Phys. Rev. E 90, 022506 (2014) PLEEE8 1539-3755
10.1103/PhysRevE. 90.022506], we studied the thermodynamic and structural properties of …

At low temperatures, some lattice spin models with simple ferromagnetic or
antiferromagnetic interactions (for example, nearest-neighbor interaction being isotropic in …

We consider here a classical model, consisting of D 2 h-symmetric particles in a three-
dimensional simple-cubic lattice; the pair potential is isotropic in orientation space, and …

We investigate the phase sequence of biaxial liquid crystals, based on a general quadratic
model Hamiltonian over the relevant parameter space, with a Monte Carlo simulation which …

We address here a special, extreme case of the quadratic pair interaction potential between
classical, D 2 h-symmetric particles (the generalized Straley model) on a three-dimensional …