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1999

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/18821

Continuous phase transition in a spin-glass model without time-reversal symmetry

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http://dx.doi.org/10.1103/PhysRevE.60.58

Abstract

We investigate the phase transition in a strongly disordered short-range three-spin interaction model characterized by the absence of time-reversal symmetry in the Hamiltonian. In the mean-field limit the model is well described by the Adam-Gibbs-DiMarzio scenario for the glass transition; however, in the short-range case this picture turns out to be modified. The model presents a finite temperature continuous phase transition characterized by a divergent spin-glass susceptibility and a negative specific-heat exponent. We expect the nature of the transition in this three-spin model to be the same as the transition in the Edwards-Anderson model in a magnetic field, with the advantage that the strong crossover effects present in the latter case are absent.

Subject

Física estadística, Termodinàmica, Sistemes no lineals, Propietats magnètiques, Equacions d'estat, Regla de les fases i equilibri, Transformacions de fase (Física estadística)

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Statistical physics, Thermodynamics, Nonlinear systems, Magnetic properties, Equations of state, Phase rule and equilibrium, Phase transformations (Statistical physics)

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Articles publicats en revistes (Física de la Matèria Condensada)

Citation

PARISI, Giorgio, PICCO, Marco and RITORT FARRAN, Fèlix. Continuous phase transition in a spin-glass model without time-reversal symmetry. Physical Review e. 1999. Vol. 60, num. 1, pags. 58-68. ISSN 1063-651X. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/18821

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