Critical behavior of the specific heat in glass formers

We show numeric evidence that, at low enough temperatures, the potential energy density of a glass-forming liquid fluctuates over length scales much larger than the interaction range. We focus on the behavior of translationally invariant quantities. The growing correlation length is unveiled by stud...

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Detalles Bibliográficos
Autores: Fernández Pérez, Luis Antonio, Martín Mayor, Víctor, Verrocchio, P.
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51923
Acceso en línea:https://hdl.handle.net/20.500.14352/51923
Access Level:acceso abierto
Palabra clave:53
51-73
Supercooled liquids
Transition
Model
Dependence
Energy
Length.
Física (Física)
Física-Modelos matemáticos
22 Física
Descripción
Sumario:We show numeric evidence that, at low enough temperatures, the potential energy density of a glass-forming liquid fluctuates over length scales much larger than the interaction range. We focus on the behavior of translationally invariant quantities. The growing correlation length is unveiled by studying the finite-size effects. In the thermodynamic limit, the specific heat and the relaxation time diverge as a power law. Both features point towards the existence of a critical point in the metastable supercooled liquid phase.