Abstract

BaTi0.90Sn0.10O3 (BTS) is prepared to study their structural, dielectric and impedance properties. X-ray diffraction (XRD) measurement is used for structural analysis. It is found that material has a single phase with P4mm space group. Surface morphology is studied by field emission-scanning electron microscopy (FE-SEM) and it suggests that, the BTS has small-sized grains spread uniformly in the sample. At low frequency, relative permittivity is found to be maximum. The magnitude of impedance decreases with increase of temperature, which reveals that BTS has negative temperature coefficient of resistance (NTCR) property. Moreover, the conduction mechanism of BTS is temperature-dependent at low frequency while at high frequency it is temperature independent.

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