Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

151475.pdf (178.13 KB)

Document type

Article

Version

Published version

Publication date

1996

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/10859

Fragile-glass behavior of a short-range p-spin model

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1103/PhysRevB.54.9756

Abstract

We propose a short-range generalization of the p-spin interaction spin-glass model. The model is well suited to test the idea that an entropy collapse is at the bottom line of the dynamical singularity encountered in structural glasses. The model is studied in three dimensions through Monte Carlo simulations, which put in evidence fragile glass behavior with stretched exponential relaxation and super-Arrhenius behavior of the relaxation time. Our data are in favor of a Vogel-Fulcher behavior of the relaxation time, related to an entropy collapse at the Kauzmann temperature. We, however, encounter difficulties analogous to those found in experimental systems when extrapolating thermodynamical data at low temperatures. We study the spin-glass susceptibility, investigating the behavior of the correlation length in the system. We find that the increase of the relaxation time is accompanied by a very slow growth of the correlation length. We discuss the scaling properties of off-equilibrium dynamics in the glassy regime, finding qualitative agreement with the mean-field theory.

Subject

Vidres de spin, Dinàmica de fluids, Regla de les fases i equilibri

Subject (English)

Spin glasses, Fluid dynamics, Phase rule and equilibrium

Citation

Collections

Articles publicats en revistes (Física de la Matèria Condensada)

Citation

ÁLVAREZ, Diego, FRANZ, Silvio and RITORT FARRAN, Fèlix. Fragile-glass behavior of a short-range p-spin model. Physical Review B. 1996. Vol. 54, num. 14, pags. 9756-9764. ISSN 0163-1829. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/10859

Export metadata

JSON - METS

Share record