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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13889
Title: Glass-like response of (Na1/2Bi1/2)TiO3-WO3 ceramic
Authors: Prasad K.
Kumari K.
Lily
Chandra K.P.
Yadav, Kamlesh Kumar
Sen S.
Published in: Solid State Communications
Abstract: Polycrystalline sample of 2.5 wt% WO3 added (Na1/2Bi1/2)TiO3 was prepared using a high-temperature solid-state reaction method at 1050 {ring operator}C and subsequent sintering at 1090 {ring operator}C in oxygen atmosphere. XRD analysis indicated the formation of a single-phase orthorhombic structure. Dielectric studies revealed the relaxor behaviour. The addition of WO3 to NBT shifts phase transition temperature as well as depolarization temperature to higher side which is desirable for piezoelectric applications. The frequency dependence of the temperature of the permittivity maximum has been modeled using Vogel-Fulcher relation. The dielectric relaxation in the system is found to be analogous to the magnetic relaxation in spin-glass system. The relaxor behaviour in the present system has also been examined through admittance spectroscopy. © 2007 Elsevier Ltd. All rights reserved.
Citation: Solid State Communications (2007), 144(43862): 42-45
URI: https://doi.org/10.1016/j.ssc.2007.07.024
http://repository.iitr.ac.in/handle/123456789/13889
Issue Date: 2007
Keywords: A. Disordered systems
A. Ferroelectrics
D. Dielectric response
ISSN: 381098
Author Scopus IDs: 7401617564
23091285300
16550446900
15070444700
7005825645
57201072179
Author Affiliations: Prasad, K., Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India
Kumari, K., Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India
Lily, Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India
Chandra, K.P., Department of Physics, S.M. College (T. M. Bhagalpur University), Bhagalpur, 812 001, India
Yadav, K.L., Department of Physics, Indian Institute of Technology, Roorkee, 247 667, India
Sen, S., National Metallurgical Laboratory, Jamshedpur, 831 007, India
Corresponding Author: Prasad, K.; Materials Research Laboratory, University Department of Physics, T. M. Bhagalpur University, Bhagalpur, 812 007, India; email: k_prasad65@yahoo.co.in
Appears in Collections:Journal Publications [PH]

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