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Thermodynamical properties of the random field Ising model

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  • Borges, H.E.
  • Silva, P.R.

Abstract

The random field Ising model is studied within the differential operator method. The phase diagrams were obtained for coordination numbers z = 4 and z = 6. They show several interesting behaviours, presenting tricritical points (only for z = 6), and re-entrant order parameters in either of the two distribution functions studied. The influence of the re-entrant behaviour on the thermodynamical properties is also investigated.

Suggested Citation

  • Borges, H.E. & Silva, P.R., 1987. "Thermodynamical properties of the random field Ising model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 144(2), pages 561-573.
    • Handle: RePEc:eee:phsmap:v:144:y:1987:i:2:p:561-573
    DOI: 10.1016/0378-4371(87)90208-1
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    1. Aharony, Joseph, 1979. "Time Effects in Empirical Stock Valuation Models," The Review of Economics and Statistics, MIT Press, vol. 61(3), pages 460-466, August.
    2. Rezende, Gervásio Castro de, 1985. "A agricultura e a reforma do crédito rural," Revista Brasileira de Economia - RBE, EPGE Brazilian School of Economics and Finance - FGV EPGE (Brazil), vol. 39(2), April.
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    Cited by:

    1. Bezerra, E.C. & Gomes da Silva, M. & de Sousa, J. Ricardo, 2023. "First-order transition of the spin-1 Blume–Capel model with random anisotropy using effective-field theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 615(C).

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