The Structure Of Converse Magnetoelectric Effect Measurement System And Its Application In Composite Multiferroic Materials

With the development of science and technology, and the quickening pace of modern life, people are increasingly demanding requirements for the field of information technology and improve the storage density and storage speed are the most important two aspects. Magnetic storage, electricity regulation, is a vision of the future functional devices, it can bring the information revolution and a refreshing.The composite multiferroic material is the material in the same time having two or more of the basic iron (such as ferromagnetic or antiferromagnetic, ferroelectricity, elastic, iron and iron vortex) of the composite-forming material, and in certain circumstances will produce a variety of mutual coupling between ferroic. Composite multiferroic materials converse magnetoelectric is a coupling it through the effects of the interface, the stress induced and exchange bias effect to achieve the electric field control of the magnetic, for the design of new functional devices provide additional controllable degrees of freedom, which leds to a great deal of research interests.This article with the multiferroic materials and magnetic coupling effect for clues, we built multiferroic the test platform on the basis of containing ferroelectric hysteresis loop measurment instrument and the surface magneto-optical Kerr effect test platform in the laboratory, provides conditions for the test and analysis of the final. And study he electric field control of magnetic of the converse magnetoelectric effect of the sample perpendicular anisotropy in ferroelectric phase of bulk PMN-PT ferromagnetic phase of CoFeB-MgO multilayer structure system, we given that mechanism as well as the appearance of a reasonable explanation.