The critical behavior of the 2D spin-1 ising model with the bilinear and positive biquadratic nearest neighbor interactions on a cellular automaton

Solak A., Kutlu B.

INTERNATIONAL JOURNAL OF MODERN PHYSICS C, cilt.15, sa.10, ss.1425-1438, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 10
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1142/s012918310400687x
  • Dergi Adı: INTERNATIONAL JOURNAL OF MODERN PHYSICS C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1425-1438
  • Anahtar Kelimeler: spin-1 Ising (BEG) model, Creutz cellular automaton, finite size scaling, EMERY-GRIFFITHS MODEL, PHASE-DIAGRAMS, UNORDERED FERROMAGNET, LATTICE MODEL, FORMULATION, SEPARATION, SIMULATION
  • Gazi Üniversitesi Adresli: Evet

Özet

The two-dimensional BEG model with nearest neighbor bilinear and positive biquadratic interaction is simulated on a cellular automaton, which is based on the Creutz cellular automaton for square lattice. Phase diagrams characterizing phase transitions of the model are presented for comparison with those obtained from other calculations. We confirm the existence of the tricritical points over the phase boundary for D / K > 0. The values of static critical exponents (alpha, beta, gamma and nu) are estimated within the framework of the finite size scaling theory along D / K = -1 and 1 lines. The results are compatible with the universal Ising critical behavior except the points over phase boundary.