The phase diagrams of the +/- K model on the Bethe lattice

Albayrak E.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.386, ss.20-24, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 386
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jmmm.2015.03.056
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.20-24
  • Anahtar Kelimeler: Blume-Emery-Griffiths, Spin-1, Bethe lattice, Biquadratic exchange interaction, EMERY-GRIFFITHS MODEL, ONE ISING-MODEL, SIMPLE CUBIC LATTICE, CRYSTAL-FIELD, RENORMALIZATION-GROUP, MONTE-CARLO, MEAN-FIELD, BEG MODEL, BOND, BEHAVIOR
  • Erciyes Üniversitesi Adresli: Evet

Özet

The biquadratic exchange interaction is randomized in a bimodal form with probabilities (p) and (1 - p) for the cases with K > 0 (attractive case) and K < 0 (repulsive case), respectively, and its effects on the phase diagrams of the spin-1 Blume-Emery-Griffiths model are studied on the Bethe lattice by using the recursion relations. It was found that the critical behaviors of the model change drastically. (C) 2015 Elsevier B.V. All rights reserved.