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Title: Order-parameter fluctuations in Ising spin glasses at low temperatures
Author: Palassini, Matteo
Sales i Pardo, Marta
Ritort Farran, Fèlix
Keywords: Vidres de spin
Temperatures baixes
Propietats magnètiques
Spin glasses
Low temperatures
Magnetic 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
It is part of: Physical Review B, 2003, vol. 68, núm. 22, p. 224430-1-224430-6
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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