Reentrant and forward phase diagrams of the anisotropic three-dimensional Ising spin glass

Can Güven, A. Nihat Berker, Michael Hinczewski, Hidetoshi Nishimori

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The spatially uniaxially anisotropic d=3 Ising spin glass is solved exactly on a hierarchical lattice. Five different ordered phases, namely, ferromagnetic, columnar, layered, antiferromagnetic, and spin-glass phases, are found in the global phase diagram. The spin-glass phase is more extensive when randomness is introduced within the planes than when it is introduced in lines along one direction. Phase diagram cross sections, with no Nishimori symmetry, with Nishimori symmetry lines, or entirely imbedded into Nishimori symmetry, are studied. The boundary between the ferromagnetic and spin-glass phases can be either reentrant or forward, that is either receding from or penetrating into the spin-glass phase, as temperature is lowered. However, this boundary is always reentrant when the multicritical point terminating it is on the Nishimori symmetry line.

Original languageEnglish
Article number061110
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume77
Issue number6
DOIs
Publication statusPublished - 2008 Jun 9
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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