The in-plane effective 90 magnetization rotation of Co₂FeAl thin film grown on PMN-PT substrate induced by the electric field is investigated at room temperature. The magnetic hysteresis loops under different positive and negative electric fields are obtained, which reveals remanent magnetization can be mediated by the electric field. Moreover, under positive electric fields, the obvious 90 magnetization rotation can be observed, while remanent magnetization is nearly unchanged under negative electric fields. The result is consistent with the electric field dependence of effective magnetic field, which can be attributed to the piezostrain effect in Co₂FeAl/PMN-PT structure. In addition, the piezostrain-mediated 90 magnetization rotation can be demonstrated by the result of resonance field changing with electric field in the measurement of ferromagnetic resonance, which is promising for the design of future multiferroic devices.

在室温下研究了由电场引起的在 PMN-PT 衬底上生长的 Co ₂ FeAl 薄膜的面内有效磁化旋转 90度。得到了不同正负电场下的磁滞回线，表明剩磁可以由电场介导。此外，在正电场下，可以观察到明显的 90 度磁化旋转，而在负电场下剩磁几乎没有变化。结果与有效磁场的电场依赖性一致，这可以归因于 Co _{2 中}的压应变效应FeAl/PMN-PT 结构。此外，在铁磁共振测量中，共振场随电场变化的结果可以证明压电应变介导的90°磁化旋转，这对于未来多铁性器件的设计很有前景。