Scaling and self-averaging in the three-dimensional random-field Ising model

Nikolaos G. Fytas, A. Malakis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We investigate, by means of extensive Monte Carlo simulations, the magnetic critical behavior of the three-dimensional bimodal random-field Ising model at the strong disorder regime. We present results in favor of the two-exponent scaling scenario, η¯η¯ = 2η, where η and η¯η¯ are the critical exponents describing the power-law decay of the connected and disconnected correlation functions and we illustrate, using various finite-size measures and properly defined noise to signal ratios, the strong violation of self-averaging of the model in the ordered phase.
Original languageEnglish
Pages (from-to)13-20
JournalThe European Physical Journal B
Volume79
Issue number1
DOIs
Publication statusPublished - 29 Nov 2010

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