The origins of dielectric responses in Ni and Nb co-doped TiO were explored considering intrinsic and extrinsic effects. DFT calculations demonstrated that Ni doping induced oxygen vacancies, while Nb doping generated free electrons. Theoretical predictions indicated complex defect dipoles forming in the rutile structure, contributing to overall dielectric responses.
View Article and Find Full Text PDFThe Mg/Ta codoped rutile TiO ceramic with a nominal composition (MgTa)TiO was synthesized using a conventional solid-state reaction method and sintered at 1400 °C for 2 h. The pure phase of the rutile TiO structure with a highly dense microstructure was obtained. A high dielectric permittivity (2.
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