Density Anomaly in Core-Softened Lattice Gas

Abstract

A two dimensional lattice gas model with ''core-softened'' potential is investigated. Two liquid phases and density anomaly are found. The demixing phase transition between the two liquid phases end at a tricritical point that is also the terminus of a critical line. The density anomaly is related to this continuous line.

References in corpus (7)

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• Phase behaviour and thermodynamic anomalies of core-softened fluids
• Polyamorphism of ice at low temperatures from constant-pressure simulations
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Cited by in corpus (20)

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• Water-like hierarchy of anomalies in a continuous spherical shouldered potential
• Structural anomalies for a three dimensional isotropic core-softened potential
• Metastable liquid-liquid coexistence and density anomalies in a core-softened fluid
• Isotropic soft-core potentials with two characteristic length scales and anomalous behaviour
• Liquid-Liquid Phase Transition for an Attractive Isotropic Potential with Wide Repulsive Range
• Anomalies in a waterlike model confined between plates
• Thermodynamic, Dynamic and Structural Anomalies for Shoulder-like potentials
• A water-like model under confinement for hydrophobic and hydrophilic particle-plate interaction potentials
• Thermodynamic and Dynamic Anomalies for Dumbbell Molecules Interacting with a Repulsive Ramp-Like Potential
• Density anomaly in a competing interactions lattice gas model
• Phase diagram of a two-dimensional lattice gas model of a ramp system
• Liquid polymorphism and density anomaly in a three-dimensional associating lattice gas
• Liquid crystal phase and waterlike anomalies in a core-softened shoulder-dumbbells system
• Liquid polymorphism, order-disorder transitions and anomalous behavior: a Monte Carlo study of the Bell-Lavis model for water
• Diffusion Anomaly in a three dimensional lattice gas
• Periodic ordering of clusters in a one-dimensional lattice model
• Thermodynamic, Dynamic, Structural and Excess Entropy Anomalies for core-softened potentials
• Thermodynamic anomalies in a lattice model of water: Solvation properties
• Relation between occupation in the first coordination shells and Widom line in Core-Softened Potentials