Anomalous Magnetic and Thermal Behavior in Some RMn2O5 Oxides

Details Anomalous Magnetic and Thermal Behavior in Some RMn2O5 Oxides Anomalous Magnetic and Thermal Behavior in Some RMn2O5 Oxides

2005-12-14

arxiv.org/abs/cond-mat/0512293v1

Physics

Condensed Matter

Materials Science

2 pages, 1 table, 3 figures, will be published in the Proceedings of the 24th International Conference on Low Temperature Phys

Scientific paper

10.1063/1.2355133

The RMn2O5 (R=Pr, Nd, Sm, and Eu) oxides showing magnetoelectric (ME) behavior have been prepared in polycrystalline form by a standard citrate route. The lattice parameters, obtained from the powder XRD analysis, follow the rare-earth contraction indicating the trivalent character of the R ions. Cusp-like anomalies in the magnetic susceptibility curve and sharp peaks in the specific heat were reported at the corresponding temperatures in RMn2O5 (R=Pr, Nd, Sm, and Eu) indicating the magnetic or electric ordering transitions.

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