Phase diagram and thermodynamic and dynamic anomalies in a pure repulsive model

作者：Bertolazzo Andressa A; Barbosa Marcia C^*

来源：Physica A: Statistical Mechanics and Its Applications , 2014, 404: 150-157.

DOI：10.1016/j.physa.2014.02.050

• Lattice gas model
• Anomalous liquids
• Fragile-to-strong transition
• GCMC algorithm

Using Monte Carlo simulations a lattice gas model with only repulsive interactions was checked for the presence of anomalies. We show that this system exhibits the density (temperature of maximum density-TMD) and diffusion anomalies as present in liquid water. These anomalous behaviors exist in the region of the chemical potential vs temperature phase diagram where two structured phases are present. A fragile-to-strong dynamic transition is also observed in the vicinity of the TMD line.

• 出版日期2014-6-15