Multicritical behaviour of the antiferromagnetic spin-32 Blume-Capel model

The multicritical behaviour of the spin-32 Ising model on the square lattice with nearest-neighbour antiferromagnetic exchange interaction (J<0), a crystal-field interaction (D) and an external magnetic field (H) is studied within mean field approximation (M.F.A.). The phase diagram exhibits a rich variety of behaviour: second order, first order and critical points of different order.

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Year of publication:	1994
Authors:	Bakchich, A. ; Bekhechi, S. ; Benyoussef, A.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 210.1994, 3, p. 415-423
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

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