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Summary: J. Phys. I France 7 (1997) 945957 AUGUST 1997, PAGE 945
The Blume-Emery-Griffiths Spin Glass Model
Mauro Sellitto (1,
), Mario Nicodemi (1
) and Jeferson J. Arenzon (2
)
(1
) Dipartimento di Scienze Fisiche, Unit`a INFM, Universit`a "Federico II",
Mostra d'Oltremare, Pad. 19, 80125 Napoli, Italy
(2
) Instituto de F´isica, UFRGS, CP 15051, 91501-970, Porto Alegre, RS, Brazil
(Received 24 January 1997, revised 8 April 1997, accepted 28 April 1997)
PACS.75.10.Nr Spin-glass and other random models
PACS.05.50.+q Lattice theory and statistics; Ising problems
PACS.64.70.Pf Glass transitions
Abstract. -- The equilibrium properties of the Blume-Emery-Griffiths model with bilinear
quenched disorder are studied for the case of attractive as well as repulsive biquadratic inter-
actions. The global phase diagram of the system is calculated in the context of the replica
symmetric mean field approximation.
1. Introduction
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