Multiferroic nature of charge-ordered rare earth manganites

Serrao, Claudy Rayan ; Sundaresan, A. ; Rao, C. N. R. (2007) Multiferroic nature of charge-ordered rare earth manganites Journal of Physics: Condensed Matter, 19 (49). 496217_1-496217_5. ISSN 0953-8984

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Official URL: http://iopscience.iop.org/0953-8984/19/49/496217?f...

Related URL: http://dx.doi.org/10.1088/0953-8984/19/49/496217

Abstract

Charge-ordered rare earth manganites Nd0.5Ca0.5MnO3, La0.25Nd0.25Ca0.5MnO3, Pr0.7Ca0.3MnO3 and Pr0.6Ca0.4MnO3 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:Article
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ID Code:44713
Deposited On:22 Jun 2011 18:47
Last Modified:23 Jun 2011 05:58

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