Magnetoelectric effect induced by eddy current generated vibration in permanent magnets/PZT composites

Abstract

This letter proposed a series of magnetoelectric (ME) composites consisting of permanent magnets (PM) and Pb(Zr,Ti)O3(PZT) ceramic plate. The Magneto-mechanical system based on the interaction between eddy currents and PM was utilized to replace the magnetostrictive material in conventional ME composites. The ME voltage coefficients of PM/PZT ME composites along the thickness direction were measured, which were equivalent to that of Terfenol-D based ME composites along the length direction. The ME effect of π-type, L-type and Z-type PM/PZT ME composites were investigated and showed that the ME voltage coefficients can be tuned by the properties of PM and the structure of ME composites with different magnetic circuit configurations.