Colossal permittivity of Sb and Ga co-doped rutile TiO2 ceramics

Material with colossal permittivity (CP) is important for the miniaturization of electronic devices and fabrication of high-density energy storage devices. However, the unbalanced developments of dielectric constant, dielectric loss and stability preclude its practical applications. In this work, we report that Sb + Ga co-doped TiO2 (SGTO) ceramics exhibit colossal permittivity and low dielectric loss. Especially, a high dielectric permittivity...