Charge-order-driven multiferroic properties of Y1-xCaxMnO3

Sahu, JR and Serrao, CR and Ghosh, A and Sundaresan, A and Rao, CNR (2009) Charge-order-driven multiferroic properties of Y1-xCaxMnO3. In: Solid State Communications, 149 (1-2). 49 -51.

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Abstract

Dielectric measurements on the charge-ordered insulators, Y1-xCaxMnO3 (x = 0.4. 0.45 and 0.5), show maxima in the dielectric constant around the charge ordering transition temperature while magnetic measurements show the presence of weak ferromagnetic interactions at low temperatures. Besides the magnetic field dependence of the dielectric constant, these manganites also exhibit second harmonic generation. Thus, the charge-ordered Y1-xCaxMnO3 compositions are multiferroic and magnetoelectric, in accordance with theoretical predictions. Magnetoelectric properties are retained in small particles of Y0.5Ca0.5MnO3. (C) 2008 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Solid State Communications
Publisher:	Elsevier Science.
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	A. Multiferroics; D. Magnetoelectric; D. Charge-ordering
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	05 Mar 2010 07:55
Last Modified:	19 Sep 2010 05:56
URI:	http://eprints.iisc.ac.in/id/eprint/25956

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