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Structural, thermal and electrical characterization of NdLiMo2O8 electroceramics, using impedance spectroscopy

Brahma, Sanjaya and Choudhary, RNP and Shivashankar, SA (2012) Structural, thermal and electrical characterization of NdLiMo2O8 electroceramics, using impedance spectroscopy. In: Journal of Physics and Chemistry of Solids, 73 (2). pp. 357-362.

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Official URL: http://dx.doi.org/10.1016/j.jpcs.2011.09.028

Abstract

We report electrical property of a polycrystalline NdLiMo2O8 ceramics using complex impedance analysis. The material shows temperature dependent electrical relaxation phenomena. The d.c. conductivity shows typical Arrhenius behavior, when observed as a function of temperature. The a.c. conductivity is found to obey Jonscher's universal power law. The material was prepared in powder form by a standard solid-state reaction technique. Material formation and crystallinity have been confirmed by X-ray diffraction studies. Impedance measurements have been performed over a range of temperatures and frequencies. The results have been analyzed in the complex plane formalism and suitable equivalent circuits have been proposed in different regions. The role of bulk and grain boundary effect in the overall electrical conduction process is discussed with proper justification. (C) 2011 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Ceramics;Thermogravimetric analysis;X-ray diffraction; Electrical properties
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 22 Mar 2012 05:12
Last Modified: 22 Mar 2012 05:12
URI: http://eprints.iisc.ernet.in/id/eprint/44021

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