The effect of an external magnetic field on the gas-liquid transition in the Ising spin fluid

Abstract

The theoretical phase diagrams of the magnetic (Ising) lattice fluid in an external magnetic field is presented. It is shown that, depending on the strength of the nonmagnetic interaction between particles, various effects of external field on the Ising fluid take place. In particular, at moderate values of the nonmagnetic attraction the field effect on the gas-liquid critical temperature is nonmonotoneous. A justification of such behavior is given. If short-range correlations are taken into account (within a cluster approach), the Curie temperature also depend on the nonmagnetic interaction.

arXiv comment4 RevTex pages, 3 EPS pictures

References in corpus (2)

• Liquid-vapour phase behaviour of a symmetrical binary fluid mixture
• The effect of an external magnetic field on the gas-liquid transition in the Heisenberg spin fluid

Cited by in corpus (7)

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• XY Spin Fluid in an External Magnetic Field
• First order phase transitions in classical lattice gas spin models
• Interaction anisotropy and random impurities effects on the critical behaviour of ferromagnets
• Self-consistent approach to magnetic ordering and excited site occupation processes in a two-level system