Critical points, phase transitions and water-like anomalies for an isotropic two length scale potential with increasing attractive well
arXiv:1607.02941 · doi:10.1016/j.physa.2016.11.026
Abstract
Molecular Dynamic and Monte Carlo studies are performed in a family of core-softened (CS) potential, composed by two length scales: a repulsive shoulder at short distances and the another a variable scale, that can be repulsive or strongly attractive depending on the parameters used. The density, diffusion and structural anomalous regions in the pressure versus temperature phase diagram shrink in pressure as the system becomes more attractive. The liquid-liquid transition appears as a consequence of the non monotonic behavior of the density versus pressure isotherms with the increase of the attraction well. We found that the liquid-gas phase transition is Ising-like for all the CS potentials and its critical temperature increases with the increase of the attraction. No Ising-like behavior for the liquid-liquid phase transition was detected in the Monte Carlo simulations what might be due to the presence of stable solid phases.
References in corpus (26)
- Generic mechanism for generating a liquid-liquid phase transition
- Core-softened potentials and the anomalous properties of water
- Molecular structural order and anomalies in liquid silica
- Thermodynamics, Structure, and Dynamics of Water Confined between Hydrophobic Plates
- Phase behavior of a system of particles with core collapse
- Excess entropy, Diffusivity and Structural Order in liquids with water-like anomalies
- Thermodynamics and Dynamics of the Two-Scale Spherically-Symmetric Jagla Model of Anomalous Liquids
- Thermodynamic and dynamic anomalies for a three dimensional isotropic core-softened potential
- Water-like hierarchy of anomalies in a continuous spherical shouldered potential
- Structure of the First and Second Neighbor Shells of Water: Quantitative Relation with Translational and Orientational Order
- Quasi-binary amorphous phase in a 3D system of particles with repulsive-shoulder interactions
- Intra-molecular coupling as a mechanism for a liquid-liquid phase transition
- Metastable liquid-liquid coexistence and density anomalies in a core-softened fluid
- Liquid-liquid equilibrium for monodisperse spherical particles
- Phase behaviour and thermodynamic anomalies of core-softened fluids
- Predictions of Dynamic Behavior Under Pressure for Two Scenarios to Explain Water Anomalies
- Relationship between Structure, Entropy and Diffusivity in Water and Water-like Liquids
- Minimum energy configurations of repelling particles in two dimensions
- Inversion of Sequence of Diffusion and Density Anomalies in Core-Softened Systems
- Phase behaviour of attractive and repulsive ramp fluids: integral equation and computer simulation studies
- Thermodynamic, Dynamic and Structural Anomalies for Shoulder-like potentials
- Silica-Like Sequence of Anomalies in Core-Softened Systems
- Complex Phase Behavior of The System of Particles with Smooth Potential with Repulsive Shoulder and Attractive Well
- Interplay between structure and density anomaly for an isotropic core-softened ramp-like potential
- Liquid crystal phase and waterlike anomalies in a core-softened shoulder-dumbbells system
- Thermodynamic, Dynamic, Structural and Excess Entropy Anomalies for core-softened potentials
Cited by in corpus (3)
- Connecting thermodynamic and dynamical anomalies of water-like liquid-liquid phase transition in the Fermi-Jagla model
- Solid-amorphous transition is related to the waterlike anomalies in a fluid without liquid-liquid phase transition
- Minimal microscopic model for liquid polyamorphism and water-like anomalies