Dielectric and Impedance Characteristics of Nickel-Modified BiFeO3-BaTiO3 Electronic Compound

Dielectric and Impedance Characteristics of Nickel-Modified BiFeO3-BaTiO3 Electronic Compound

The temperature- and field-dependent capacitive, resistive and conducting characteristics of nickel-modified binary electronic systems of bismuth ferrite (BiFeO 3 ) and barium titanate (BaTiO 3 ) have been investigated using dielectric and impedance spectroscopy techniques. The orthorhombic crystal...

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Bibliographic Details
Published in:Journal of electronic materials Vol. 47; no. 1; pp. 843 - 854
Main Authors: Das, S. N., Pardhan, S. K., Bhuyan, S., Sahoo, S., Choudhary, R. N. P., Goswami, M. N.
Format: Journal Article
Language:English
Published: New York Springer US 2018
Springer Nature B.V
Subjects:
Barium titanates
Bismuth ferrite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crystal structure
Crystallography
Dielectric properties
Electrical properties
Electronic devices
Electronic systems
Electronics and Microelectronics
Energy consumption
Instrumentation
Materials research
Materials Science
Nickel
Optical and Electronic Materials
Solid State Physics
Specific heat
Ni-modfied BiFeO
ceramics
BaTiO
Dielectric properties
impedance characteristics
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Summary:The temperature- and field-dependent capacitive, resistive and conducting characteristics of nickel-modified binary electronic systems of bismuth ferrite (BiFeO 3 ) and barium titanate (BaTiO 3 ) have been investigated using dielectric and impedance spectroscopy techniques. The orthorhombic crystal structures of the solid solution (Bi 1−2x Ni x Ba x )(Fe 1−2x Ti 0.2x )O 3 (with x  = 0.10, 0.15, 0.20 and 0.25) have been identified from powder x-ray crystallography. The micrographs exhibit the development of dense samples with reduced grain size for higher percentage of Ni in the BiFeO 3 –BaTiO 3 . The stoichiometric content of each sample has been realized using the energy dispersive x-ray technique. The relationship between micro-structural study and frequency–temperature-dependent electrical properties of the compound has revealed a negative temperature coefficient of resistance behavior. A non-Debye-type relaxation process is observed from the Niquist plot. The studied compound presents important dielectric properties for the formulation of electronic devices.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-017-5848-3