Abstract
(BiFeO3)1−x–(CuCa3Ti4O12)x (x = 0.00, 0.10 and 0.20) ceramics had been prepared via the mixed route. The crystal structure transformation of BiFeO3 (BFO) from rhombohedral to pseudotetragonal phase was induced by 20 mol% CuCa3Ti4O12 (CCTO). Impedance measurements suggested the increase in grain boundary resistance, and CCTO addition could block the conduction path and stabilize the motion of defects. The dielectric constant and the loss tangent of BFO as a function of frequency were found to be incremental on increasing CCTO contents. The enhancement of magnetization would be attributed to the effective suppression of the spiral spin structure and the structure transformation.
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