Density controls the kinetic stability of ultrastable glasses

Abstract

We use a swap Monte Carlo algorithm to numerically prepare bulk glasses with kinetic stability comparable to that of glass films produced experimentally by physical vapor deposition. By melting these systems into the liquid state, we show that some of our glasses retain their amorphous structures longer than 10^5 times the equilibrium structural relaxation time. This exceptional kinetic stability cannot be achieved experimentally for bulk materials. We perform simulations at both constant volume and constant pressure to demonstrate that the density mismatch between the ultrastable glass and the equilibrium liquid accounts for a major part of the observed kinetic stability.

arXiv comment7 Pages, 6 Figures. Figures 4b) and 5b) updated, revisions to text to improve discussion, missing page numbers added to references, typos corrected

References in corpus (16)

• Theoretical perspective on the glass transition and amorphous materials
• The glass transition of dense fluids of hard and compressible spheres
• Facets of glass physics
• Equilibrium sampling of hard spheres up to the jamming density and beyond
• The Monte-Carlo dynamics of a binary Lennard-Jones glass-forming mixture
• Model Vapor-Deposited Glasses: Growth Front and Composition Effects
• One micron length scale controls kinetic stability of low energy glasses
• Origin of ultrastability in vapor-deposited glasses
• Thermal stability of vapor-deposited stable glasses of an organic semiconductor
• Preparation and relaxation of very stable glassy states of a simulated liquid
• Highly Stable Glasses of cis-Decalin and cis/trans-Decalin Mixtures
• Equilibrium ultrastable glasses produced by random pinning
• The melting of stable glasses is governed by nucleation-and-growth dynamics
• Fluctuating Mobility Generation and Transport in Glasses
• Front propagation versus bulk relaxation in the annealing dynamics of a kinetically constrained model of ultrastable glasses
• Kinetic stability and energetics of simulated glasses created by constant pressure cooling

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• Efficient swap algorithms for molecular dynamics simulations of equilibrium supercooled liquids
• Can the glass transition be explained without a growing static length scale?
• How to "measure" a structural relaxation time that is too long to be measured?
• Marginally stable phases in mean-field structural glasses
• Experimental evidence of a crossover between cooperative relaxation and liquid growth dynamics
• Two-step devitrification of ultrastable glasses
• Front-mediated melting of ultrastable glasses
• Local order and crystallization of dense polydisperse hard spheres
• Front propagation in ultrastable glasses is dynamically heterogeneous
• Structural signatures of ultrastability in a deposited glassformer
• Stable glassy configurations of the Kob-Andersen model using swap Monte Carlo
• Glassy behaviour of sticky spheres: What lies beyond experimental timescales?
• Dynamical Facilitation Governs the Equilibration Dynamics of Glasses
• Ductile and brittle yielding of athermal amorphous solids: a mean-field paradigm beyond the random field Ising model
• Computational Methods toward Ultrastable Glasses
• Initial Stages of Rejuvenation of Vapor-Deposited Glasses during Isothermal Annealing: Contrast Between Experiment and Simulation