Field-induced transitions in low-dimensional antiferromagnets and in a spin-peierls system

Field-induced transitions in weakly anisotropic low-d antiferromagnets provide a rich field of critical phenomena, closely related to topics outside magnetism. We discuss phase diagrams for quasi 1-d and 2-d antiferromagnets, which relate to 1-d solitons, the 2-d commensurate-incommensurate (C-IC) t...

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Published inJournal of magnetism and magnetic materials Vol. 54; pp. 1447 - 1452
Main Authors de Jongh, L.J., Brom, H.B., de Groot, H.J.M., Hijmans, Th.W., Korving, W.H.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.1986
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Summary:Field-induced transitions in weakly anisotropic low-d antiferromagnets provide a rich field of critical phenomena, closely related to topics outside magnetism. We discuss phase diagrams for quasi 1-d and 2-d antiferromagnets, which relate to 1-d solitons, the 2-d commensurate-incommensurate (C-IC) transition, the Kosterlitz-Thouless transition and the random-field problem. We also review (and present new) experimental data on the Spin-Peierls compound in TTF-AuBDT in the light of current theory. At low temperatures a field-induced C-IC transition to a soliton-lattice phase is predicted, which is confirmed by our data.
ISSN:0304-8853
DOI:10.1016/0304-8853(86)90883-8