Critical phenomena Lattice Models Statistical Physics

Thermodynamic potentials for the infinite range Ising model with strong coupling

R. Hilfer

Physica A 320, 429 (2003)

submitted on
Monday, September 30, 2002

The specific Gibbs free energy has been calculated for the infinite range Ising model with fixed and finite interaction strength. The model shows a temperature driven first-order phase transition that differs from the infinite ranged Ising model with weak coupling. In the temperature-field phase diagram the strong coupling model shows a line of first-order phase transitions that does not end in a critical point.

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