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

doi:10.1007/s42452-019-1479-z

paper

Structure and dielectric properties of Ba $_{2}$ Cu $_{x}$ Y $_{1 - x}$ TaO $_{6 - y}$ double perovskite

arXiv:1901.05548 · doi:10.1007/s42452-019-1479-z

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.

13 pages, 7 figures, 2 tables

Structure and dielectric properties of Ba2​Cux​Y1−x​TaO6−y​ double perovskite

Abstract

Structure and dielectric properties of Ba $_{2}$ Cu $_{x}$ Y $_{1 - x}$ TaO $_{6 - y}$ double perovskite