Multiferroic nature of charge-ordered rare earth manganites

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 magnetic transition temperatures. Magnetic fields have a marked effect on the dielectric properties, indi...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Claudy Rayan Serrao, Sundaresan, A, Rao, C N R
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.08.2007
Subjects
Anomalies
Dielectric properties
Magnetic properties
Magnetic transitions
Manganites
Order parameters
Physics - Materials Science
Physics - Strongly Correlated Electrons
Online AccessGet full text

Cover

More Information
Summary: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 magnetic 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 coworkers.
ISSN:2331-8422
DOI:10.48550/arxiv.0708.0746