MULTICRITICAL BEHAVIOR OF THE ANTIFERROMAGNETIC SPIN-3 2 BLUME-CAPEL MODEL/

Authors
BAKCHICH A BEKHECHI S BENYOUSSEF A
Citation
A. Bakchich et al., MULTICRITICAL BEHAVIOR OF THE ANTIFERROMAGNETIC SPIN-3 2 BLUME-CAPEL MODEL/, Physica. A, 210(3-4), 1994, pp. 415-423
Citations number
15
Categorie Soggetti
Physics
Journal title
Physica. A → ACNP
ISSN journal
03784371
Volume
210
Issue
3-4
Year of publication
1994
Pages
415 - 423
Database
ISI
SICI code
0378-4371(1994)210:3-4<415:MBOTAS>2.0.ZU;2-L
Abstract
The multicritical behaviour of the spin-3/2 Ising model on the square lattice with nearest-neighbour antiferromagnetic exchange interaction (J < 0), a crystal-field interaction (D) and an external magnetic fiel d (H) is studied within mean field approximation (M.F.A.). The phase d iagram exhibits a rich variety of behaviour: second order, first order and critical points of different order.