Colossal magnetostriction effect in HoMn 2 O 5

I. Radulov (), V. I. Nizhankovskii, V. Lovchinov, D. Dimitrov and A. Apostolov

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 52, issue 3, 361-364

Abstract: We have investigated the detailed field and temperature dependence of the dielectric constant, electric polarization, magnetization and magnetostriction in orthorhombic HoMn 2 O 5 single crystals. HoMn 2 O 5 displays incommensurate antiferromagnetic ordering below 39 K, becoming commensurate on further cooling. The commensurate-incommensurate transition takes place at low temperatures. The inherent magnetic frustration in this material is lifted by a small lattice distortion, primarily involving shifts of the Mn 3+ cations and giving rise to a canted antiferroelectric phase. Colossal magnetostriction effect was observed and a novel phase transition diagram was build. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 75.47.Lx Manganites; 75.80.+q Magnetomechanical and magnetoelectric effects; magnetostriction (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1140/epjb/e2006-00318-3

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