Coexistence of spin glass phase with ferromagnetism in the Sherrington–Kirkpatrick model

M. I. Vladimir, L. A. Dogotar', S. P. Kozhukhar'


Abstract: Configuration averaging of the thermodynamic variables is carried out in the Sherrington–Kirkpatrick spin glass model with nonzero first moment of the Gaussian distribution of the bonds. Analytic expressions are obtained for the order parameters and thermodynamic functions in the neighborhood of the transition temperatures and at low temperatures. The phase diagram is constructed.

Received: 22.04.1985

 English version: Theoretical and Mathematical Physics, 1986, 68:3, 948–954

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