Ising model

https://doi.org/10.1351/goldbook.15372
Theory of coexistence curves or other discontinuities in the properties of phases (such as order-disorder or magnetic transitions) in binary systems, based on a one-, two-, or three-dimensional statistical mechanical nearest-neighbor lattice theory.
Note: The theory predicts phase separation in a wide variety of systems, including binary liquid or solid systems that possess critical solution points.
Source:
PAC, 2008, 80, 233. (Glossary of terms related to solubility (IUPAC Recommendations 2008)) on page 251 [Terms] [Paper]