Generalized cluster variation theory for the isotropic-nematic phase transition


Afsar O. , KAYACAN Ö.

PHYSICA SCRIPTA, cilt.73, ss.525-530, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 73 Konu: 6
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1088/0031-8949/73/6/002
  • Dergi Adı: PHYSICA SCRIPTA
  • Sayfa Sayıları: ss.525-530

Özet

In this study, a cluster variation theory for the Maier-Saupe model of the nematic-isotropic phase transition is generalized by using non-extensive thermostatistics. The variation of long-range order parameter with temperature is investigated and the effect of the possible generalization is shown for some values of the entropic index. The critical value of the long-range order parameter at the nematic-isotropic transition temperature versus the entropic index is also compared with Monte Carlo simulation values and experimental data.