Critical behavior of the three-dimensional dilute ising antiferromagnet in a field

Andrew T. Ogielski, David A. Huse

Research output: Contribution to journalArticle

127 Scopus citations

Abstract

We report results of large Monte Carlo simulations of an experimentally realizable random-field system: the three-dimensional dilute Ising antiferromagnetic in a field. We find that the correlation time diverges dramatically as T†'Tc; the results are consistent with a proposed new type of activated dynamic scaling. The transition appears to be continuous, with effective critical exponents =0.5±0.1 and =-1.0±0.3 for strong fields, away from the weak-field regime where crossover effects distort exponent estimates. These strong-field exponents satisfy recently derived inequalities.

Original languageEnglish (US)
Pages (from-to)1298-1301
Number of pages4
JournalPhysical Review Letters
Volume56
Issue number12
DOIs
StatePublished - Jan 1 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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