NDLI: Structural and electrical properties of Ba(Fe$_{1/3}$Nb$_{1/3}$Ta$_{1/3}$)O$

Content Provider	Springer Nature Link
Author	Chickpatil, Mallikarjun Chitgopikar, Girija M. Raibagkar, Ravindra L.
Copyright Year	2007
Abstract	Ba(Fe$_{1/3}$Nb$_{1/3}$Ta$_{1/3}$)O$_{3 }$(BFNT) perovskite compound (phase purity>99%) was synthesized by conventional ceramic preparation method. XRD, microstructure, impedance spectroscopy and ac conductivity properties were analyzed in this study. BFNT compound has a cubic crystal structure, having grain size of 0.31 μm. This compound has shown normal ferroelectric behaviour but not obeying Curie-Weiss law. The impedance and electrical studies have been performed as a function of frequency and temperature. Impedance as a function of frequency revealed single relaxation process. The impedance spectroscopic plots exhibit the major response due to grains with partial contribution from the grain boundary and negligible electrode effect. Complex impedance plot showed data points lying on a single semicircle, implying the response originated from a single capacitive element corresponding to the bulk grains. Also, the centre of semicircle lies below the real axis indicating non-Debye type relaxation. Relaxation time was calculated from Z″$_{max}$ of Cole–Cole plots. It is observed that conduction is due to hopping of charge carriers. Activation energies were computed from the Arrhenius plots of the sample.
Starting Page	991
Ending Page	995
Page Count	5
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	18
Issue Number	10
e-ISSN	1573482X
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2007-06-20
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Characterization and Evaluation of Materials Optical and Electronic Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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