Artificial multiferroics magnetoelectric (ME) polymer composite films exhibiting collective ferroelectric and magnetic orderings are gaining attractive for the use of flexible ME devices. Herein an anisotropic polymer-based ME composites films is developed, composed of magnetically oriented polycrystalline iron fiber (Fe_f) and poly(vinylidene fluoride-co-trifluoroethylene) P(VDF–TrFE). The structure, ferroelectric, piezoelectric, magnetic, and ME properties was systematically investigated. Both Fe_f fillers content and magnetic field direction determined the ME voltage coefficient, magnetical polarization and dielectric response in anisotropic P(VDF-TrFE)–Fe_f composites. Specifically, the composite with 16% filler loading delivers a peak ME value of 44.5 mV·cm⁻¹·Oe⁻¹ with magnetic field exerted along the fiber axial alignment direction. Such extracted results may encourage a way to optimize flexible composite in anisotropic contactless sensing and detecting applications.

表现出集体铁电和磁性有序性的人造多铁磁电 (ME) 聚合物复合膜对于柔性 ME 设备的使用越来越有吸引力。在此开发了一种基于各向异性聚合物的 ME 复合材料薄膜，由磁性取向的多晶铁纤维 (Fe _f ) 和聚(偏二氟乙烯-共-三氟乙烯) P(VDF-TrFE) 组成。系统地研究了结构、铁电、压电、磁性和ME特性。Fe _f填料含量和磁场方向决定了各向异性 P(VDF-TrFE)-Fe _f复合材料的 ME 电压系数、磁极化和介电响应。具体而言，填充量为 16% 的复合材料的 ME 峰值为 44.5 mV·cm^-1 ·Oe ^-1磁场沿纤维轴向排列方向施加。这种提取的结果可能会鼓励一种在各向异性非接触式传感和检测应用中优化柔性复合材料的方法。