Direct Numerical Analysis of Dynamic Facilitation in Glass-Forming Liquids - Laboratoire Charles Coulomb (L2C) Access content directly
Journal Articles Physical Review Letters Year : 2024

Direct Numerical Analysis of Dynamic Facilitation in Glass-Forming Liquids

Cecilia Herrero

Abstract

We propose a computational strategy to quantify the temperature evolution of the timescales and length scales over which dynamic facilitation affects the relaxation dynamics of glass-forming liquids at low temperatures, which requires no assumption about the nature of the dynamics. In two glass models, we find that dynamic facilitation depends strongly on temperature, leading to a subdiffusive spreading of relaxation events which we characterize using a temperature-dependent dynamic exponent. We also establish that this temperature evolution represents a major contribution to the increase of the structural relaxation time.
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Dates and versions

hal-04623148 , version 1 (25-06-2024)

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Cecilia Herrero, Ludovic Berthier. Direct Numerical Analysis of Dynamic Facilitation in Glass-Forming Liquids. Physical Review Letters, 2024, 132 (25), pp.258201. ⟨10.1103/PhysRevLett.132.258201⟩. ⟨hal-04623148⟩
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