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Zero-temperature TAP equations for the Ghatak-Sherrington model

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Abstract:

The zero-temperature TAP equations for the spin-1 Ghatak-Sherrington model are investigated. The spin-glass energy density (ground state) is determined as a function of the anisotropy crystal field D for a large number of spins. This allows us to locate a first-order transition between the spin-glass and paramagnetic phases within a good accuracy. The total number of solutions is also determined as a function of D.

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Authors and Affiliations

  1. Departamento de F'isica, Te'orica e Experimental, Universidade Federal do Rio Grande do Norte, Campus Universit'ario, C.P. 1641, 59072-970 Natal RN, Brazil, , , , , , BR

    F.A. da Costa & J.M de Araújo

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  1. F.A. da Costa
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  2. J.M de Araújo
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Received 25 November 1999

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da Costa, F., de Araújo, J. Zero-temperature TAP equations for the Ghatak-Sherrington model. Eur. Phys. J. B 15, 313–316 (2000). https://doi.org/10.1007/s100510051130

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  • DOI: https://doi.org/10.1007/s100510051130

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