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...

ver descrição completa

Detalhes bibliográficos
Autores: Fernández Pérez, Luis Antonio, Martín Mayor, Víctor, Verrocchio, P.
Formato: artículo
Fecha de publicación:2006
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51923
Acesso em linha:https://hdl.handle.net/20.500.14352/51923
Access Level:acceso abierto
Palavra-chave:53
51-73
Supercooled liquids
Transition
Model
Dependence
Energy
Length.
Física (Física)
Física-Modelos matemáticos
22 Física
Descrição
Resumo: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.