J. Phys. I France
Volume 7, Numéro 8, August 1997
Page(s) 945 - 957
DOI: 10.1051/jp1:1997197
J. Phys. I France 7 (1997) 945-957

The Blume-Emery-Griffiths Spin Glass Model

Mauro Sellitto1, Marino Nicodemi1 and Jeferson J. Arenzon2

1  Dipartimento di Scienze Fisiche, Unitá INFM, Universitá "Federico II", Mostra d'Oltremare, Pad. 19, 80125 Napoli, Italy
2  Instituto de Física, UFRGS, CP 15051, 91501-970, Porto Alegre, RS, Brazil

(Received 24 January 1997, revised 8 April 1997, accepted le 28 April 1997)

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 interactions. The global phase diagram of the system is calculated in the context of the replica symmetric mean field approximation.

© Les Editions de Physique 1997

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