Giant magnetoelectric effect in multiferroic laminated composites

Multiferroic laminated composites consisting of Terfenol-D/polyvinylidene-fluoride (PVDF) and lead-zirconate titanate (PZT)/PVDF particulate composite layers were prepared by a simple hot-molding technique. Magnetoelectric coefficients are characterized for the different measuring angles between the directions of polarization and applied magnetic field and at various frequencies. The results indicate that the three-phase laminated composites exhibit remarkable magnetoelectric effect especially at the resonance frequency at which the electromechanical resonance appears. The maximum magnetoelectric sensitivity of such composites is about 6 V/cm Oe at about 90 kHz.