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Multiferroic nature of charge-ordered rare earth manganites

Claudy Rayan, Serrao and Sundaresan, A and Rao, CNR (2007) Multiferroic nature of charge-ordered rare earth manganites. In: Journal of Physics: Condensed Matter, 19 (49). 496217:1-5.

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Charge-ordered rare earth manganites $Nd_{0.5}Ca_{0.5}MnO_3, La_{0.25}Nd_{0.25}Ca_{0.5}MnO_3$, $Pr_{0.7}Ca_{0.3}MnO_3$ and $Pr_{0.6}Ca_{0.4}MnO_3$ are found to exhibit dielectric constant anomalies around the charge-ordering or the antiferromagnetic transition temperatures. Magnetic fields have a marked effect on the dielectric properties, indicating the presence of coupling between the magnetic and electrical order parameters. The observation of magnetoferroelectricity in these manganites is in accord with the recent theoretical predictions of Khomskii and co-workers

Item Type: Journal Article
Publication: Journal of Physics: Condensed Matter
Publisher: Institute of Physics
Additional Information: Copyright of this article belongs to Institute of Physics and IOP.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 12 Feb 2008
Last Modified: 19 Sep 2010 04:42
URI: http://eprints.iisc.ac.in/id/eprint/12982

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