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The structural, morphological, conductive and magnetic properties of 0.7BaTiO3-0.3BaFe12O19 (BT-BFO) ceramics were investigated as a function of oxygen vacancies by post-annealing in N2 and O2. Raman spectra shown that the samples had no other impurity phases, the structure of BaTiO3 changed from tetragonal to hexagonal after annealing in N2. The conduction activation energy about 0.3eV indicated...
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