Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13946
Title: Hopping type of conduction in (Na0.5Bi0.5)ZrO3 ceramic
Authors: Prasad K.
Lily
Kumari K.
Yadav, Kamlesh Kumar
Published in: Journal of Physics and Chemistry of Solids
Abstract: Polycrystalline sample with (Na0.5Bi0.5)ZrO3 (NBZ) stoichiometry was prepared using a high-temperature solid-state reaction technique. X-ray diffraction (XRD) analyses indicate the formation of a single-phase perovskite-type orthorhombic structure. AC impedance plot is used as tool to analyse the electrical behaviour of the sample as a function of temperature at different frequency. The AC impedance studies revealed the presence of grain boundary effect and evidence of a negative temperature coefficient of resistance (NTCR) character. Pseudo Cole-Cole and complex electric modulus analyses indicated non-Debye-type dielectric relaxation. The AC conductivity obeys the universal power law. The pair approximation type correlated barrier hopping (CBH) model explains the universal behaviour of the s exponent. The apparent activation energy to the conduction process and minimum hopping distance are discussed. © 2007 Elsevier Ltd. All rights reserved.
Citation: Journal of Physics and Chemistry of Solids (2007), 68(8): 1508-1514
URI: https://doi.org/10.1016/j.jpcs.2007.03.023
http://repository.iitr.ac.in/handle/123456789/13946
Issue Date: 2007
Keywords: D. Electrical conductivity
ISSN: 223697
Author Scopus IDs: 57191917084
16550446900
23091285300
7005825645
Author Affiliations: Prasad, K., Materials Research Laboratory, Department of Physics, T. M. Bhagalpur University, University Campus, Bhagalpur, 812 007, India
Lily, Materials Research Laboratory, Department of Physics, T. M. Bhagalpur University, University Campus, Bhagalpur, 812 007, India
Kumari, K., Materials Research Laboratory, Department of Physics, T. M. Bhagalpur University, University Campus, Bhagalpur, 812 007, India
Yadav, K.L., Department of Physics, Indian Institute of Technology, Roorkee, 247 667, India
Corresponding Author: Prasad, K.; Materials Research Laboratory, Department of Physics, T. M. Bhagalpur University, University Campus, Bhagalpur, 812 007, India; email: k_prasad65@yahoo.co.in
Appears in Collections:Journal Publications [PH]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.