SrTi1-x(Zn1/3Nb2/3)xO3 ceramics with various defect concentration were designed and prepared via solid state reaction method, the close relationships between defect structure and dielectric behavior of were investigated in detail. High permittivity (∼9100) and low dielectric loss (∼0.03) are achieved at an optimum doping concentration (x = 0.015) due to the enhanced local polarization, while the dielectric properties deteriorate because of the increasing self-compensation as the impurity concentration continuously increases. Further investigation shows that, the giant permittivity is o...
