Abstract
Magnetoelectric laminated composites of 0.65BiFeO3-0.35BaTiO3/BiY2Fe5O12 obtained by the conventional solid-state sintering method were investigated for their electrical, magnetic and magnetoelectric properties. The results show that 0.65BiFeO3-0.35BaTiO3 and BiY2Fe5O12 phases can coexist in the composites. Compared with the magnetoelectric particulate composites, the laminated composites have higher resistivity and lower leakage current. The magnetoelectric behaviors were strongly dependent on the relative mass ratio of the 0.65BiFeO3-0.35BaTiO3 and BiY2Fe5O12 phases. The largest magnetoelectric coefficient of the laminated composite reaches up to 7.25 mV cm−1 Oe at a bias magnetic field of 3000 Oe and a frequency of 70 kHz, which is twenty times as large as that of the particulate composite (0.36 mV cm−1 Oe).
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