Simple Fluids with Complex Phase Behavior

Abstract

We find that a system of particles interacting through a simple isotropic potential with a softened core is able to exhibit a rich phase behavior including: a liquid-liquid phase transition in the supercooled phase, as has been suggested for water; a gas-liquid-liquid triple point; a freezing line with anomalous reentrant behavior. The essential ingredient leading to these features resides in that the potential investigated gives origin to two effective core radii.

7 pages including 3 eps figures + 1 jpeg figure

References in corpus (5)

• The Phase Diagram of Star Polymer Solutions
• Core-softened potentials and the anomalous properties of water
• Liquid State Anomalies for the Stell-Hemmer Core-Softened Potential
• Is there a liquid-liquid phase transition in supercooled water ?
• Minimum energy configurations of repelling particles in two dimensions

Cited by in corpus (10)

• Metastable liquid-liquid phase transition in a single-component system with only one crystal phase and no density anomaly
• Phase behaviour and thermodynamic anomalies of core-softened fluids
• Liquid-Liquid Phase Transition for an Attractive Isotropic Potential with Wide Repulsive Range
• Complex Phase Behavior of The System of Particles with Smooth Potential with Repulsive Shoulder and Attractive Well
• A square-well model for the structural and thermodynamic properties of simple colloidal systems
• Generalized van der Waals theory of liquid-liquid phase transitions
• Structural properties of the Jagla fluid
• Microscopic structure and thermodynamics of a core-softened model fluid from the second-order integral equations theory
• Density and structural anomalies in soft-repulsive dimeric fluids
• Exact anisotropic properties of hard spheres in narrow cylindrical confinement