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

被引:30
作者
Das, S. N. [1 ]
Pardhan, S. K. [1 ]
Bhuyan, S. [1 ]
Sahoo, S. [1 ]
Choudhary, R. N. P. [1 ]
Goswami, M. N. [2 ]
机构
[1] Siksha O Anusandhan Univ, Bhubaneswar 751030, Orissa, India
[2] Midnapore Coll, Dept Phys, Midnapore 721101, W Bengal, India
关键词
Dielectric properties; Ni-modfied BiFeO3-BaTiO3 ceramics; impedance characteristics; BIFEO3; THIN-FILMS; COMPLEX IMPEDANCE; CERAMICS; FERROELECTRICITY; SPECTROSCOPY; POLARIZATION;
D O I
10.1007/s11664-017-5848-3
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The temperature- and field-dependent capacitive, resistive and conducting characteristics of nickel-modified binary electronic systems of bismuth ferrite (BiFeO3) and barium titanate (BaTiO3) have been investigated using dielectric and impedance spectroscopy techniques. The orthorhombic crystal structures of the solid solution (Bi1-2xNixBax)(Fe1-2xTi0.2x)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 BiFeO3-BaTiO3. 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.
引用
收藏
页码:843 / 854
页数:12
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