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Relaxor Ferroelectric Behavior and Structural Aspects of SrNaBi2Nb3O12 Ceramics

Kumar, Sunil and Ochoa, Diego A and Eduardo Garcia, Jose and Varma, Kalidindi BR (2012) Relaxor Ferroelectric Behavior and Structural Aspects of SrNaBi2Nb3O12 Ceramics. In: Journal of the American Ceramic Society, 95 (4). pp. 1339-1342.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1551-...

Abstract

The SrNaBi2Nb3O12 (SNBN) powder was prepared via the conventional solid-state reaction method. X-ray structural studies confirmed the phase to be a three-layered member of the Aurivillius family of oxides. The SNBN ceramics exhibited the typical characteristics of relaxor ferroelectrics, associated with broad and dispersive dielectric maxima. The variation of temperature of dielectric maxima (T-m) with frequency obeyed the Vogel-Fulcher relationship. Relaxor behavior was believed to be arising from the cationic disorder at A-site. Pinched ferroelectric hysteresis loops were observed well above T-m.

Item Type: Journal Article
Additional Information: Copyright of this article is belongs to John Wiley and Sons.
Keywords: PHASE-TRANSITIONS;BISMUTH TITANATE;PEROVSKITES;CRYSTALS
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 14 Aug 2012 05:13
Last Modified: 14 Aug 2012 05:15
URI: http://eprints.iisc.ernet.in/id/eprint/44490

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