Nonmonotonic crossover of the effective susceptibility exponent

Erik Luijten, Henk W J Blöte, Kurt Binder

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

We have numerically determined the behavior of the magnetic susceptibility upon approach of the critical point in two-dimensional spin systems with an interaction range that was varied over nearly two orders of magnitude. The full crossover from classical to Ising-like critical behavior, spanning several decades in the reduced temperature, could be observed. Our results convincingly show that the effective susceptibility exponent γ_eff changes nonmonotonically from its classical to its Ising value when approaching the critical point in the ordered phase. In the disordered phase the behavior is monotonic. Furthermore the hypothesis that the crossover function is universal is supported.

Original languageEnglish (US)
Pages (from-to)561-564
Number of pages4
JournalPhysical review letters
Volume79
Issue number4
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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