{ "id": "cond-mat/9901187", "version": "v1", "published": "1999-01-19T18:11:35.000Z", "updated": "1999-01-19T18:11:35.000Z", "title": "Metamagnets in uniform and random fields", "authors": [ "Serge Galam", "Carlos S. O. Yokoi", "Silvio R. Salinas" ], "comment": "14 pages, latex, 3 figures included", "journal": "Phys. Rev. B 57 (1998) 8370-8374", "doi": "10.1103/PhysRevB.57.8370", "categories": [ "cond-mat.dis-nn", "cond-mat.stat-mech" ], "abstract": "We study a two-sublattice Ising metamagnet with nearest and next-nearest-neighbor interactions, in both uniform and random fields. Using a mean-field approximation, we show that the qualitative features of the phase diagrams are significantly dependent on the distribution of the random fields. In particular, for a Gaussian distribution of random fields, the behavior of the model is qualitatively similar to a dilute Ising metamagnet in a uniform field.", "revisions": [ { "version": "v1", "updated": "1999-01-19T18:11:35.000Z" } ], "analyses": { "keywords": [ "random fields", "two-sublattice ising metamagnet", "next-nearest-neighbor interactions", "mean-field approximation", "phase diagrams" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "LaTeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable" } } }