Non-trivial fixed-point structure of the two-dimensional ± J 3-state potts ferromagnet/spin glass

E. S. Sørensen, M. J.P. Gingras, D. A. Huse

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The fixed-point structure of the 2D 3-state random-bond Potts model with a bimodal (±J) distribution of couplings is fully determined using numerical renormalization group techniques. Along the paramagnet-to-ferrornagnet critical line we find a total of four distinct fixed points: i) the pure critical fixed point, ii) the critical fixed point for the random-bond, but unfrustrated, ferromagnet, iii) a bicritical fixed point analogous to the bicritical Nishimori fixed point found in the random-bond frustrated Ising model, and iv) the zero-temperature spin-glass to-ferromagnet critical fixed point. Estimates of the associated critical exponents are given for the various fixed points.

Original languageEnglish (US)
Pages (from-to)504-510
Number of pages7
JournalEurophysics Letters
Volume44
Issue number4
DOIs
StatePublished - Nov 15 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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