Charge-order driven multiferroic and magneto-dielectric properties of rare earth manganates


Autoria(s): Serrao, Claudy Rayan; Sahu, Jyoti Ranjan; Ghosh, Anirban
Data(s)

01/04/2010

Resumo

Charge-order driven magnetic ferroelectricity is shown to occur in several rare earth manganates of the general formula, Ln(1-x)A(x)MnO(3) (In = rare earth, A = alkaline earth). Charge-ordered manganates exhibit dielectric constant anomalies around the charge-ordering or the antiferromagnetic transition temperature. Magnetic fields have a marked effect on the dielectric properties of these compounds, indicating the presence of coupling between the magnetic and electrical order parameters. Magneto-dielectric properties are retained in small particles of the manganates. The observation of magneto-ferroelectricity in these manganates is in accordance with theoretical predictions.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/29209/1/169.pdf

Serrao, Claudy Rayan and Sahu, Jyoti Ranjan and Ghosh, Anirban (2010) Charge-order driven multiferroic and magneto-dielectric properties of rare earth manganates. In: Bulletin of Materials Science, 33 (2). pp. 169-178.

Publicador

Indian Academy of Sciences

Relação

http://www.ias.ac.in/matersci/

http://eprints.iisc.ernet.in/29209/

Palavras-Chave #Materials Engineering (formerly Metallurgy)
Tipo

Journal Article

PeerReviewed