Phase diagrams of the spin-3/2 Blume-Emery-Griffiths model on the Bethe lattice using the recursion method

Albayrak E., Keskin M.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol.241, pp.249-259, 2002 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 241
  • Publication Date: 2002
  • Doi Number: 10.1016/s0304-8853(01)01388-9
  • Journal Name: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.249-259
  • Keywords: spin-3/2 BEG model, Bethe lattice, the exact recursion equations
  • Erciyes University Affiliated: Yes

Abstract

The statistical physics of the spin-3/2 Blume-Emery-Griffiths model on the Bethe lattice is studied by using the exact recursion equations. Exact expressions for the free energy, the Curie or the second-order phase transition temperatures as well as the magnetization and quadrupolar moment order parameters are found. The phase diagrams in (kT/J, D/J) and (kT/J,K/J) planes are presented in depth for various values of constants K/J and D/J, respectively. The phase diagrams are discussed and a comparison is made with the results of the other approximation methods. (C) 2002 Elsevier Science B.V. All rights reserved.