Solvable Lattice Gas Models with Three Phases

TL;DR

This paper introduces lattice gas models with three phases, providing exact calculations or evaluations of their phase boundaries, advancing understanding beyond traditional two-phase models.

Contribution

It presents new lattice gas models with three phases and offers exact analytic or evaluative results for their phase boundaries.

Findings

Models with three phases successfully analyzed

Exact phase boundary calculations achieved

Advances understanding of multi-phase material behavior

Abstract

Phase boundaries in p-T and p-V diagrams are essential in material science researches. Exact analytic knowledge about such phase boundaries are known so far only in two-dimensional (2D) Ising-like models, and only for cases with two phases. In the present paper we present several lattice gas models, some with three phases. The phase boundaries are either analytically calculated or exactly evaluated.