2023-11-072023-11-072019OLIVEIRA, F. S. et al. Structure and dielectric properties of Ba2CuxY1−xTaO6−y double perovskite. SN Applied Sciences, Berlin, v. 1, e1447, 2019. DOI: 10.1007/s42452-019-1479-z. Disponível em: https://link.springer.com/article/10.1007/s42452-019-1479-z. Acesso em: 4 set. 2023.e- 2523-3971https://link.springer.com/article/10.1007/s42452-019-1479-zIn this paper, we reported the efect of Cu doping on the structural and dielectric properties of Ba2Y1−xCuxTaO6−y (0.00 ≤ x ≤ 0.50) ceramics at room temperature. The copper for yttrium substitution reduces the sintering temperature and leads to structural changes in the Ba2YTaO6 rock-salt crystalline structure. Dielectric permittivity and complex impedance spectroscopy measurements suggested enhancement of the dielectric constant and occurrence of interfacial Maxwell– Wagner polarization.engAcesso RestritoDielectricPerovskiteComplex impedance spectroscopyArtigo10.1007/s42452-019-1479-z