Multicritical behavior of the antiferromagnetic spin-3/2 Blume-Emery-Griffiths model

Keskin, MUSTAFA; PINAR, M.; Erdinc, Ahmet; Canko, Osman

doi:10.1016/j.physa.2005.08.077

Multicritical behavior of the antiferromagnetic spin-3/2 Blume-Emery-Griffiths model

Atıf İçin Kopyala

Keskin M., PINAR M. A., Erdinc A., Canko O.

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, cilt.364, ss.263-270, 2006 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 364
Basım Tarihi: 2006
Doi Numarası: 10.1016/j.physa.2005.08.077
Dergi Adı: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.263-270
Erciyes Üniversitesi Adresli: Evet

Özet

The multicritical behavior of the antiferromagnetic spin-(3)/(2) Blume-Emery-Griffiths model in an external magnetic field is 2 studied within the lowest approximation of the cluster variation method. We have investigated the thermal variations of order parameters for different values of interaction parameters and external magnetic field and constructed the resulting phase diagrams. The model exhibits distinct critical regions, including the first-order, second-order tricritical point, double critical point and zero critical point. Comparison of the phase diagrams with closely related systems is made. (c) 2005 Elsevier B.V. All rights reserved.