On the Allowable or Forbidden Nature of Vapor-Deposited Glasses
arXiv:2004.11534 · doi:10.1063/5.0006590
Abstract
Vapor deposition can yield glasses that are more stable than those obtained by the traditional melt-quenching route. However, it remains unclear whether vapor-deposited glasses are "allowable" or "forbidden," that is, if they are equivalent to glasses formed by cooling extremely slowly a liquid or if they differ in nature from melt-quenched glasses. Here, based on reactive molecular dynamics simulation (MD) of silica glasses, we demonstrate that the allowable or forbidden nature of vapor-deposited glasses depends on the temperature of the substrate and, in turn, is found to be encoded in their medium-range order structure.
References in corpus (8)
- Spatial Correlations of Mobility and Immobility in a Glassforming Lennard-Jones Liquid
- Perspective: Highly stable vapor-deposited glasses
- Cooling-Rate Effects in Sodium Silicate Glasses: Bridging the Gap between Molecular Dynamics Simulations and Experiments
- Rings and rigidity transitions in network glasses
- Model Vapor-Deposited Glasses: Growth Front and Composition Effects
- Origin of ultrastability in vapor-deposited glasses
- Age and Structure of a Model Vapor-Deposited Glass
- The Structural Origin of Enhanced Dynamics at the Surface of a Glassy Alloy