Abstract
In this communication, the study of Raman and impedance spectroscopy of a calcium copper zirconate (Ca3CuZr4O12) quadruple perovskite prepared by solid-state reaction method is reported. Appearance of Raman peaks suggests presence of the vibrational modes of all constituent elements present in the prepared material. The frequency and temperature dependence of electrical plots are very much helpful to evaluate the effect of microstructure in the conduction mechanism. The study of the impedance plots shows the NTCR (negative temperature coefficient of resistance) nature, the effect of grains and grain boundaries, and the conduction mechanism of the sample. The difference between the Z″ and M″ peaks increase with temperature confirming a non-Debye relaxation mechanism. The perfect semicircular arcs in Nyquist plots confirm semiconductor nature; which is also well supported from results of the impedance and modulus plots. Based on the experimental results it can be assumed that the prepared sample may be used for electronic and storage device applications.
Published Version
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