A5011806597- Material Dynamics and Properties
- Theoretical and Computational Physics
- Glass properties and applications
- Metallic Glasses and Amorphous Alloys
- Plant and animal studies
University of Amsterdam
2020-2023
It has been recently established that the low-frequency spectrum of simple computer glass models is populated by soft, quasilocalized nonphononic vibrational modes whose frequencies $\ensuremath{\omega}$ follow a gapless, universal distribution $\mathcal{D}(\ensuremath{\omega})\ensuremath{\sim}{\ensuremath{\omega}}^{4}$. While this shown to be robust varying history and spatial dimension, it so far only observed in glasses featuring radially symmetric, pairwise interaction potentials....
Recent literature indicates that attractive interactions between particles of a dense liquid play secondary role in determining its bulk mechanical properties. Here we show that, contrast with their apparent unimportance to the mechanics liquids, can have major effect on macro- and microscopic elastic properties glassy solids. We study several broadly applicable dimensionless measures stability disorder simple computer glasses, which relative strength interactions---referred as ``glass...
Quantifying mechanical disorder in solids, either disordered crystals or glassy and understanding its range of variability are prime importance, e.g. for discovering structure–properties relations. The bounds on the degree fluctuations solids how those depend formation history remain unknown. Here, we study a broadly applicable quantifier mesoscopic χ, defined via dimensionless shear modulus, over wide variety computer upon varying different control parameters. χ is intimately related to...
Many structural glasses feature static and dynamic mechanical properties that can depend strongly on glass formation history. The degree of universality this history dependence what it is possibly affected by are largely unexplored. Here we show the variability elastic simple computer under thermal annealing depends strength attractive interactions between glasses' constituent particles---referred to here as ``stickiness.'' We find in stickier stiffening shear modulus with suppressed, while...
The systematic identification of temperature scales in supercooled liquids that are key to understanding those liquids' underlying glass properties, and the latter's formation-history dependence, is a challenging task. Here we study statistics particles' squared displacements $\delta r^2$ between equilibrium liquid configurations at $T$, their inherent states, using computer simulations 11 different computer-glass-formers. We show relative fluctuations nonmonotonic exhibiting maximum whose...
Quantifying mechanical disorder in solids, either disordered crystals or glassy and understanding its range of variability are prime importance, e.g.~for discovering structure-properties relations. The bounds on the degree fluctuations solids how those depend formation history remain unknown. Here, we study a broadly applicable quantifier mesoscopic $χ$, defined via dimensionless shear modulus, over wide variety computer upon varying different control parameters. $χ$ is intimately related to...