Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/10920
 Title: Order-parameter fluctuations in Ising spin glasses at low temperatures Author: Palassini, MatteoSales i Pardo, MartaRitort Farran, Fèlix Keywords: Vidres de spinTemperatures baixesPropietats magnètiquesSpin glassesLow temperaturesMagnetic properties Issue Date: 2003 Publisher: The American Physical Society Abstract: We present a numerical study of the order-parameter fluctuations for Ising spin glasses in three and four dimensions at very low temperatures and without an external field. Accurate measurements of two previously introduced parameters, A and G, show that the order parameter is not self-averaging, consistent with a zero-temperature thermal exponent value \theta' \simeq 0, and confirm the validity of the relation G=1/3 in the thermodynamic limit in the whole low-temperature phase, as predicted by stochastic stability arguments. Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.68.224430 It is part of: Physical Review B, 2003, vol. 68, núm. 22, p. 224430-1-224430-6 Related resource: http://doi.org/10.1103/PhysRevB.68.224430 URI: http://hdl.handle.net/2445/10920 ISSN: 0163-1829 Appears in Collections: Articles publicats en revistes (Física de la Matèria Condensada)

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