We examine the thermodynamics of supercooled liquids focusing on the immediate vicinity of an onset temperature, where system dynamics just begin to experience caging effects. Simulation data from a polymer model and from small molecule mixtures show, in agreement with experiment, that the configurational entropy becomes strongly temperature dependent below Since the diffusion coefficient follows the Adam-Gibbs relationship, our results clearly establish a thermodynamic connection to the localized dynamics of glass-forming liquids.
Thermodynamic signature of the onset of caged dynamics in glass-forming liquids
Sudesh Kamath, Ralph H. Colby, Sanat K. Kumar, Jörg Baschnagel; Thermodynamic signature of the onset of caged dynamics in glass-forming liquids. J. Chem. Phys. 15 January 2002; 116 (3): 865–868. https://doi.org/10.1063/1.1433498
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