Magnetoelectric Effect in CoFe Alloy/Piezoelectric/CoFe Alloy Three-Layered Structures

In this work, we investigated the characteristics of a direct magnetoelectric effect on three-layered multiferroic structure by method of harmonic field modulation. Multiferroic structures had the same piezoelectric layer—commercial PZT ceramics VIBRIT 1100 and different ferromagnetic layers—Ni and various kinds of commercial CoFe alloys. The largest value of magnetoelectric interaction was found for the sample where VACOFLUX48 was used as a ferromagnetic layer—10.25 V/(cm Oe) at resonance frequency of 206.36 kHz. This fact makes this structure very promising for development of high-sensitive sensors of alternating magnetic field and autonomous power sources.