Liquid polymorphism and density anomaly in a three-dimensional associating lattice gas

Abstract

We investigate the phase diagram of a three-dimensional associating gas $(ALG)$ model. This model combines orientational ice-like interactions and ``van der Waals'' that might be repulsive, representing, in this case, a penalty for distortion of hydrogen bonds. These interactions can be interpreted as two competing distances making the connection between this model and continuous isotropic soft-core potentials. We present Monte Carlo studies of the $ALG$ model showing the presence of two liquid phase, two critical points and A density anomaly.

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• Diffusion Anomaly in a three dimensional lattice gas
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• Solution of an associating lattice gas model with density anomaly on a Husimi lattice
• Revisiting waterlike network-forming lattice models
• Order-disorder transition in a two-dimensional associating lattice gas
• Phase Diagram and Thermodynamic and Dynamic Anomalies in a Pure Repulsive Model
• Phase diagram and critical properties of a two-dimensional associating lattice gas