Study of conduction mechanism, electrical property, and nonlinear electrical behaviors of Ba 0.97 Bi 0.02 Ti 0.9 Zr 0.05 Nb 0.04 O 3 perovskite
作者： Zeineb Raddaoui , Rim Lahouli , Safwen El Kossi , Jemai Dhahri , Hafedh Belmabrouk
DOI: 10.1007/S10854-020-03046-X
关键词:
摘要: The conduction mechanism, electric properties, and I–V behavior of the polycrystalline Ba0.97Bi0.02Ti0.9Zr0.05Nb0.04O3 (BBTZN) ceramic analyzed as a function frequency temperature. relaxation phenomena were studied with impedance modulus formalism, while conductivity mechanism was investigated using electrical conductivity. thermal evolution adjusted by Jonscher’s Law explained in terms Correlated Barrier Hopping mechanism. nonlinear current–voltage confirmed negative temperature coefficient resistance comportment for our compound. that processes are non-Debye type. study complex suggests poly-dispersive non-Debye-type occurring (BBTZN). dielectric response dominance Maxwell–Wagner (M–W) model effect phenomenon. value permittivity is highly around 103, low loss 10–4 S cm−1 BBTZN observed. These values make this composition interesting microelectric applications. In study, observed conductivity, impedance, associated singly doubly ionized oxygen vacancies lower higher temperature, respectively.
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