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arXiv · 1901.05548

Structure and dielectric properties of Ba$_2$Cu$_x$Y$_{1-x}$TaO$_{6-y}$ double perovskite

F. S. Oliveira·C. A. M. dos Santos·A. J. S. Machado·P. Banerjee·A. Franco Jr
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Abstract

In this paper, we reported the effect of Cu doping on the structural and dielectric properties of Ba$_2$Y$_{1-x}$Cu$_x$TaO$_{6-y}$ (0.00 $\leq$ x $\leq$ 0.50) ceramics at room temperature. The Copper for Yttrium substitution reduces the sintering temperature and leads to structural changes in the Ba$_2$YTaO$_6$ rock-salt crystalline structure. Dielectric permittivity and complex impedance spectroscopy measurements suggested enhancement of the dielectric constant and occurrence of interfacial Maxwell-Wagner polarization.

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F. S. Oliveira, C. A. M. dos Santos, A. J. S. Machado, P. Banerjee, A. Franco Jr. 2019-01-16. Structure and dielectric properties of Ba$_2$Cu$_x$Y$_{1-x}$TaO$_{6-y}$ double perovskite. https://doi.org/10.1007/s42452-019-1479-z

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