Abstract
AbstractThe spin‐3/2 Blume–Emery–Griffiths model is solved on the Bethe lattice in the absence and presence of the external field using the iteration technique (recursion method). The phase diagrams are obtained for the coordination number q = 3, 4, 6 and 8. We confirm the existence of a staggered quadrupolar phase in addition to a ferrimagnetic and ferromagnetic ordered phases and analyze the occurence of re‐entrant boundaries inside the ordered region as a character of the coordination of the lattice. A comparison is made with the results of other approximate methods. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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