Abstract Enhancing electric field controlled magnetism of micron-scale-thickness ferromagnetic film is of great significance to improve the performance of magnetoelectric (ME) sensors, ME tunable inductors and other ME devices. In order to achieve above purpose, multilayer preparation method was proposed and validated by experiment studies on multilayer (Cu(10 nm)/(FeGaB(100 nm)/Cu(5 nm))10) and monolayer (Cu(10 nm)/FeGaB (1000 nm)/Cu(5 nm)) samples, respectively. The results show the electric field controlled magnetism could be enhanced obviously by the multilayer preparation method. Meanwhile, the finite element simulation model was established to analyze possible causes for the improvement of electric field controlled magnetism in multilayer sample. The model revealed that multilayer preparation can reduce the in-plane demagnetizing factor and increase the internal magnetic field of the magnetic materials, thus enhancing electric field controlled magnetism. This work is conducive to the development of micron-scale-thickness films in electric field control of magnetism, which contributes to the application of ferroelectric/ferromagnetic heterostructures in ME devices.

中文翻译：

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多层制备法提高Pb(Mg1/3Nb2/3)0.7O3-PbTiO.3O3上微米级厚度Fe71Ga17B12薄膜的电场控制磁性

摘要 增强微米级厚度铁磁薄膜的电场控制磁性对于提高磁电（ME）传感器、ME可调电感器和其他ME器件的性能具有重要意义。为了达到上述目的，提出了多层制备方法，并通过多层（Cu（10 nm）/（FeGaB（100 nm）/Cu（5 nm））10）和单层（Cu（10 nm）/分别为 FeGaB (1000 nm)/Cu(5 nm)) 样品。结果表明，多层制备方法可以明显增强电场控制的磁性。同时，建立了有限元仿真模型，分析了多层样品中电场控制磁性提高的可能原因。该模型表明，多层制备可以降低面内退磁因子并增加磁性材料的内磁场，从而增强电场控制磁性。这项工作有利于开发微米级厚度薄膜在磁场电场控制中的应用，有助于铁电/铁磁异质结构在微电子器件中的应用。