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Phase Transitions in Confined Antiferromagnets

A. Diaz-Ortiz·J. M. Sanchez·J. L. Moran-Lopez
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Abstract

Confinement effects on the phase transitions in antiferromagnets are studied as a function of the surface coupling v and the surface field h for bcc(110) films. Unusual topologies for the phase diagram are attained for particular combinations of v and h. It is shown that some of the characteristics of the finite-temperature behavior of the system are driven by its low-temperature properties and consequently can be explained in terms of a ground-state analysis. Cluster variation free energies are used for the investigation of the finite temperature behavior.

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A. Diaz-Ortiz, J. M. Sanchez, J. L. Moran-Lopez. 2000-02-16. Phase Transitions in Confined Antiferromagnets. https://doi.org/10.1002/1521-3951(200007)220%3A1%3C389%3A%3Aaid-pssb389%3E3.3.co%3B2-p

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