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Abstract: We investigate the characteristic length scales associated with the glasstransition phenomenon. By studying an atomic glass-forming liquid in negativelycurved space, for which the local order is well identified and the amount offrustration opposing the spatial extension of this order is tunable, we provideinsight into the structural origin of the main characteristics of the dynamicsleading to glass formation. We find that the structural length and thecorrelation length characterizing the increasing heterogeneity of the dynamicsgrow together as temperature decreases. However, the system eventually enters aregime in which the former saturates as a result of frustration whereas dynamiccorrelations keep building up.



Autor: François Sausset, Gilles Tarjus

Fuente: https://arxiv.org/







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