Dimensional crossover in the aging dynamics of spin glasses in a film geometry.

Motivated by recent experiments of exceptional accuracy, we study numerically the spin-glass dynamics in a film geometry. We cover all the relevant time regimes, from picoseconds to equilibrium, at temperatures at and below the 3D critical point. The dimensional crossover from 3D to 2D dynamics, whi...

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Detalles Bibliográficos
Autores: Fernández Pérez, Luis Antonio, Marinari, E., Martín Mayor, Víctor, Paga, I, Ruiz Lorenzo, J. J.
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/5979
Acceso en línea:https://hdl.handle.net/20.500.14352/5979
Access Level:acceso abierto
Palabra clave:53
Equilibrium
Física (Física)
22 Física
Descripción
Sumario:Motivated by recent experiments of exceptional accuracy, we study numerically the spin-glass dynamics in a film geometry. We cover all the relevant time regimes, from picoseconds to equilibrium, at temperatures at and below the 3D critical point. The dimensional crossover from 3D to 2D dynamics, which starts when the correlation length becomes comparable to the film thickness, consists of four dynamical regimes. Our analysis, based on a renormalization group transformation, finds consistent the overall physical picture employed by Orbach and co-workers in the interpretation of their experiments.