Inversion of Sequence of Diffusion and Density Anomalies in Core-Softened Systems

TL;DR

This study uses simulations to explore water-like anomalies in core-softened systems, revealing that the order of diffusion and density anomalies can invert as the potential's shoulder width increases.

Contribution

It demonstrates how varying the repulsive shoulder width in core-softened potentials causes an inversion of the anomalous regions, advancing understanding of anomalous behaviors in such systems.

Findings

Anomalous diffusion and density regions are identified.

The order of these anomalous regions inverts with increased shoulder width.

Simulation results support the inversion phenomenon.

Abstract

In this paper we present a simulation study of water-like anomalies in core-softened system introduced in our previous publications. 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 repulsive shoulder.