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Erschienen in:
03.06.2016
Dielectric and impedance spectroscopy of Ni doped BiFeO3-BaTiO3 electronic system
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 10/2016
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Abstract
A nickel modified BiFeO3–BaTiO3 electronic system has been fabricated by using a high-temperature solid-state reaction process. Preliminary X-ray structural analysis has confirmed the formation of a single-phase material in the orthorhombic crystal system. The dielectric and impedance characteristics of the prepared material have been studied in a wide range of frequency (1 kHz-1 MHz) at different temperatures (25–500 °C) for the better understanding of the frequency-temperature dependence of its capacitive and resistive behavior respectively. A significant effect of grains and grain boundaries of the resistive characteristics of the material is observed at high temperatures. The electrical conductivity of the material increases with increase in frequency in the low-temperature region. Preliminary study of a small amount of Ni doping in the above binary system (i.e., BiFeO3–BaTiO3) has provided many interesting results which may be useful for the fabrication of an electronic device.