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Modulated replica symmetry breaking schemes for antiferrimagnetic spin glasses

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  • R. Oppermann
  • D. Sherrington
  • M. Kiselev

Abstract

We define modulated replica symmetry breaking (RSB) schemes which combine tree- and wave-like structures. A modulated scheme and unmodulated RSB are evaluated at 1-step level for a semiconductor model with antiferromagnetic Korenblit-Shender interaction. By comparison of the free energies we find evidence that a T=0 phase transition in the ferrimagnetic phase leads to a transition between the different RSB-schemes. An embedding factor of Parisi block matrices with sublattice-asymmetrical size is employed as a new variational parameter in the modulated scheme. Copyright EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2004

Suggested Citation

  • R. Oppermann & D. Sherrington & M. Kiselev, 2004. "Modulated replica symmetry breaking schemes for antiferrimagnetic spin glasses," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 37(2), pages 187-192, January.
    • Handle: RePEc:spr:eurphb:v:37:y:2004:i:2:p:187-192:10.1140/epjb/e2004-00045-9
    DOI: 10.1140/epjb/e2004-00045-9
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