Structural Relaxations in a Simple Model Molten Salt

TL;DR

This paper investigates the structural relaxation dynamics in a dense molten salt modeled as charged hard spheres, highlighting the effects of Coulomb interactions and charge ordering using Mode Coupling Theory.

Contribution

It introduces a theoretical analysis of molten salt relaxation dynamics incorporating Coulomb interactions via Mode Coupling Theory and equilibrium structure input from Mean Spherical Approximation.

Findings

Differences from non-ionic systems due to Coulomb interactions

Charge ordering influences relaxation behavior

Non-equilibrium results derived from equilibrium structure

Abstract

The structural relaxations of a dense, binary mixture of charged hard spheres are studied using the Mode Coupling Theory (MCT). Qualitative differences to non--ionic systems are shown to result from the long--range Coulomb interaction and charge ordering in dense molten salts. The presented non--equilibrium results are determined by the equilibrium structure, which is input using the well studied Mean Spherical Approximation.