Dielectric properties of the LSBN-SBT ceramic system

The stoichiometric LSBN-SBT ceramic system was obtained for different conce ntrations of Titanium ions, where the Nb5+ was substituted by Ti4+ accordin g to the following expression Sr0.255La0.03Ba0.7Nb2-yTiyO6-y/2. Oxygen vaca ncies are thus created which, together with the vacancies in the A sites of the TTB material structure, play an important role in their phase transiti on and dielectric properties, due to the crucial role that the occupancy of the crystallographic sites plays in such kind of structures.