Ref HAL: hal-04623148_v1
Ref Arxiv: 2310.16935
DOI: 10.1103/PhysRevLett.132.258201
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé:

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.