The discotic nematic (ND)–biaxial nematic (NB)–calamitic nematic (NC) phase transitions
are studied in a potassium laurate–decanol–D 2 O mixture by optical conoscopy. The N …

We use a lattice gas model to describe the phase transitions in nematic liquid crystals. The
phase diagram displays, in addition to the isotropic phase, the two uniaxial nematics, the rod …

The system sodium dodecyl sulphate (SDS)/decanol (DeOH)/water presents, with
temperature increase, an unusual phase transition between a stable biaxial phase and a …

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 …

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 …

In this work, we explore fluctuations during phase transitions of uniaxial and biaxial liquid
crystals using a phenomenological free energy functional. We rely on a continuum-level …

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 …

The system SDS/decanol/water is investigated by polarized optical microscopy. A reported
biaxial island is here confirmed by conoscopy, in the temperature interval 20° C to 26° C …

We use an infinite-range Maier–Saupe model, with two sets of local quadrupolar variables
and restricted orientations, to investigate the global phase diagram of a coupled system of …

The nematic ordering of (1) a racemic mixture and (2) an enantiopure melt of trimer chains is
inspected within the Landau theory of phase transitions. Each chain contains three rigid …