Multiferroic properties of (1-x)BCZT-xLCMO laminated composites

The electrical, ferromagnetic and magnetoelectric properties of the (1-x) Ba0.85Ca0.15Zr0.10Ti0.90O3-xLa0.67Ca0.33MnO3 [(1-x)BCZT-xLCMO] laminated composites were investigated. The ferroelectric and ferromagnetic characteristics demonstrated that the laminated composites are multiferroic in nature. Our results indicated that the performances of the laminated composites showed strong dependence on the thickness ratio between the ferroelectric BCZT layer and ferromagnetic LCMO layer. Enhanced dielectric properties were obtained for the laminated composites compared with that of the pure BCZT. The piezoelectric coefficient (d33) and coercive electric fields (EC) of the laminated composites declined with the increasing LCMO nonferroelectric layer, while the saturated magnetization (MS) increased and the coercive magnetic field (MC) kept constant. The 0.3BCZT-0.7LCMO composites obtained the largest magnetoelectric coefficient of αE31 = 1.66 mV/cm·Oe.