Fluctuation-Induced First-Order Phase Transitions Studied by the Monte Carlo Technique

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  • O. G. Mouritsen
  • S. J. Knak Jensen
  • Per Bak

The critical behavior of a three-dimensional antiferromagnet described by a six-dimensional order parameter has been investigated by the Monte Carlo technique. A first-order phase transition is observed. This result is in agreement with the prediction of renormalization-group calculations in 4-ε dimensions and with neutron scattering experiments on UO2, but in contrast to the mean-field theory, which leads to a second-order phase transition.

Original languageEnglish
JournalPhysical Review Letters
Issue number10
Pages (from-to)629-632
Number of pages4
Publication statusPublished - 1977
Externally publishedYes

ID: 238394473