Superfragile glassy dynamics of onecomponent system with isotropic potential: competition of diffusion and frustration

TL;DR

This study uses molecular dynamics to explore the superfragile glassy dynamics in a one-component system with isotropic interactions, revealing a high glass-forming ability and a minimum in Tg at maximal frustration.

Contribution

It demonstrates the superfragile nature of glassy dynamics in a one-component isotropic system and links the glass transition temperature to frustration levels.

Findings

Glass state is superfragile with high glass-forming ability.

Tg shows a pronounced minimum at densities with maximal frustration.

Glass dynamics are influenced by the competition of diffusion and frustration.

Abstract

We investigate glassy dynamical properties of one component three-dimensional system of particles interacting via pair repulsive potential by the molecular dynamic simulation in the wide region of densities. The glass state is superfragile and it has high glassforming ability. The glass transition temperature Tg has pronounced minimum at densities where the frustration is maximal.