Magnet–metal–piezoelectric magnetic sensor with the highest magnetoelectric coefficient

A magnetoelectric sensor with the highest currently known quasi-static magnetoelectric coefficient, 92 V/(cm Oe), is theoretically described. A model is suggested based on which the optimal thickness of piezoceramics providing the highest generated voltage is determined. The influence of the Maxwell–Wagner relaxation and effective parameter approximation on the physical properties of hybrid structures is studied for the first time. The theoretical and experimental data are compared with models that consider the transformed cross section method as a main technique for determining the equivalent stiffness of the structure.