We have considered a nematogenic lattice model, consisting of three-component unit vectors, associated with a two-dimensional lattice, and interacting via London–Heller–de Boer dispersion potential restricted to nearest neighbours, already studied by simulation in three dimensions (Mol....

The present paper considers a biaxial nematogenic lattice model, involving particles of D2h symmetry, whose centres of mass are associated with a three-dimensional simple-cubic lattice; the pair potential is isotropic in orientation space, restricted to nearest neighbours, and has the simplified...

We report here the mean field (MF) and Monte Carlo (MC) simulation study of a nematogenic lattice model; it involves particles possessing D2h symmetry, whose centres of mass are associated with a two-dimensional square lattice, while particle orientations belong to ordinary three-dimensional space;...

The present paper considers a biaxial nematogenic lattice model, involving particles of D2h symmetry, whose centres of mass are associated with a three-dimensional simple-cubic lattice; the pair potential is defined by a London–De Boer–Heller dispersion interaction, restricted to nearest...

This work deals with the theoretical study of rheological properties of a suspension of micron-sized magnetizable particles in a nanodisperse ferrofluid. In recent years, these systems have been synthesized by several teams in order to enhance technological properties of traditional magnetic...

Among the stationary configurations of the Hamiltonian of a classical O(n) lattice spin model, a class can be identified which is in one-to-one correspondence with all the configurations of an Ising model defined on the same lattice and with the same interactions. Starting from this observation...

In this paper, using both analytic methods and Monte Carlo simulations with our triangle cluster algorithm, we illustrate the scaling behavior of two possible 4th-order connected energy cumulants across the well-known second and first-order phase transitions of the Baxter–Wu model under zero...

Data compressors available in the web have been used to determine magnetic phases for two-dimensional (2D) systems [E. Vogel, G. Saravia, F. Bachmann, B. Fierro, J. Fischer, Phase transitions in Edwards-Anderson model by means of information theory, Physica A 388 2009 4075–4082]. In the...

A quantum spherical version of the site-random XY model in the presence of random field is presented in the boson space. In the phase diagram drawn as a function of the strength of random field, we find that the ferromagnetic and spin-glass phases are reduced by quantum fluctuations and...

We study phase transitions of two-dimensional Lennard-Jones drops. A wide excitation energy range is studied, which encompasses the solid-like to liquid-like phase transition, the weakly evaporating liquid drop and multifragmentation. We are able to calculate the caloric curve for the whole...