MAGNETOELECTRIC COMPOSITE MATERIAL FOR MAGNETIC FIELD SENSOR Russian patent published in 2018 - IPC H01L41/83 

FIELD: electricity.

SUBSTANCE: used for the production of ME composite materials with an internal constant magnetic field. Summary of invention consists in fact, that magnetoelectric composite material for a magnetic field sensor comprises magnetostrictive and piezoelectric materials made of lead zirconate titanate ceramics PbZr_0.53Ti_0.47O₃ components, where the magnetostrictive component contains an internal constant magnetic displacement field, the magnetostrictive layer is formed of the terphenol granules distributed in the epoxy compound Tb_0.12Dy_0.2Fe_0.68, and the internal constant magnetic displacement field is created by dividing the magnetostrictive layer into two regions with different concentrations of granules Tb_0.12Dy_0.2Fe_0.68.

EFFECT: technical result: providing the possibility of obtaining ME composite materials with an internal constant magnetic field, demonstrating optimal ME coefficients, simplifying the conditions for using the material in devices.

1 cl, 3 dwg