منابع مشابه
Inversion of sequence of diffusion and density anomalies in core-softened systems.
In this paper we present a simulation study of water-like anomalies in core-softened system introduced in our previous papers. We investigate the anomalous regions for a system with the same functional form of the potential but with different parameters and show that the order of the region of anomalous diffusion and the region of density anomaly is inverted with increasing the width of the rep...
متن کاملPhase behaviour and thermodynamic anomalies of core-softened fluids
We report extensive simulation studies of phase behaviour in single component systems of particles interacting via a core-softened interparticle potential. Two recently proposed examples of such potentials are considered; one in which the hard core exhibits a shoulder, (Sadr-Lahijany et al, Phys. Rev. Lett. 81, 4895 (1998)) and the other in which the softening takes the form of a linear ramp (J...
متن کاملWaterlike anomalies for core-softened models of fluids: one dimension.
We use a one-dimensional (1D) core-softened potential to develop a physical picture for some of the anomalies present in liquid water. The core-softened potential mimics the effect of hydrogen bonding. The interest in the 1D system stems from the facts that closed-form results are possible and that the qualitative behavior in 1D is reproduced in the liquid phase for higher dimensions. We discus...
متن کاملPhase behavior and thermodynamic anomalies of core-softened fluids.
We report extensive simulation studies of phase behavior in single component systems of particles interacting via a core-softened interparticle potential. Two recently proposed examples of such potentials are considered; one in which the hard core exhibits a shoulder [Sadr-Lahijany et al., Phys. Rev. Lett. 81, 4895 (1998)], and the other in which the softening takes the form of a linear ramp [J...
متن کاملLiquid-State Anomalies and the Stell-Hemmer Core-Softened Potential
We study the liquid anomalies arising from the Stell-Hemmer interaction, using molecular dynamics simulations and approximate 2D solutions. We observe in the liquid phase three types of anomalies: (i) An increase in specific volume upon cooling, (ii) an increase in isothermal compressibility upon cooling, and (iii) an increase in the diffusion coefficient with pressure. We relate the anomalies ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2013
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.87.042122