Wide magnetic field range of Ni-P/PZT/Ni-P cylindrical layered magnetoelectric composites

Abstract

The Ni-P/PZT/Ni-P cylindrical layered magnetoelectric (ME) composites were prepared by electroless deposition. The Ni-P layer has an amorphous nanocrystalline structure. The ME effect in the axial mode of the Ni-P/PZT/Ni-P cylindrical layered composites is similar to that of Ni/PZT/Ni. The Ni-P/PZT/Ni-P composite has lower bias magnetic field of 120 Oe to induce a maximum αE,A and 0.5 kOe to generate αE,A linear increase at the resonance frequency, which may be related to the high permeability of the Ni-P layer. This discovery contributes to the ME devices miniaturization and expands the magnetic field detection range at both low and high magnetic fields.