0-X型磁电复合材料耦合效应研究进展

Research progress on coupling effect of 0-X type magnetoelectrical composites

综述了国内外0-X型复合多铁性材料磁电耦合效应的研究进展。由磁性纳米微粒与铁电相复合而成的0-X型磁电复合多铁性材料具有更大的界面面积、更好的分散性以及因磁性相之间较差的连通性所带来的高阻特性等优点,理论上可获得室温下更强的磁电耦合效应。但是,0-X型磁电复合多铁性材料的磁电耦合效应不仅与铁电相和铁磁相本身有关,还依赖于两相的界面、尺寸、外延应变以及连接形式等因素,其中,磁电相之间的连接形式直接决定了复合材料中磁电相的分散性、界面面积及界面之间的作用力大小,进而影响磁电复合多铁性材料的磁电耦合性能。

Global research progress on magnetoelectric coupling effect of 0-X composite multiferroic materials is reviewed.The 0-X type magnetoelectric composite multiferroic material composed of magnetic nanoparticles and ferroelectric phase has the advantages of larger interface area, better dispersion and high resistance characteristics caused by poor connectivity between magnetic phases.Theoretically, a stronger magnetoelectric coupling effect at room temperature can be obtained.However, the magnetoelectric coupling effect of the 0-X type magnetoelectric composite multiferroic material is not only related to the ferroelectric phase and the ferromagnetic phase itself, but also depends on the factors such as the interface, size, epitaxial strain, and connection form between two phases.Among these factors, the connection form between the magnetoelectric phases directly determines the dispersion of the magnetoelectric phase in the composite material, the interface area and the force between the interfaces, and then affects the magnetoelectric coupling performance of the magnetoelectric composite multiferroic material.