多铁性磁电器件研究进展

Recent progress of multiferroic magnetoelectric devices

多铁性材料可以实现力、电、磁等多物理场之间的相互耦合,在小尺寸、快速响应和低功耗的磁电器件领域具有重要的应用前景.在应用需求的推动下,以具有磁电耦合效应的多铁性材料为基础的磁电器件在设计、微纳加工和性能优化等方面的研究取得了持续的进展.本文简要介绍了基于磁电耦合效应的几种原型器件的最新进展,包括可调谐电感、滤波器、磁电存储器、能量回收器、磁电传感器和磁电天线等,分析总结了各种磁电器件的工作原理及其性能表现,讨论了当前多铁性磁电器件研究所面临的问题和挑战,并提出了改进磁电器件性能的研究方向.

Multiferroic composites possess the coupling effect among mechanical, electrical, and magnetic ordering, showing potential applications in compact, fast, and low-power magnetoelectric devices. Owing to the increasing application demand, the researches of device design, micro-/nano-fabrication, and performance test of magnetoelectric devices have made continuous progress. In this review, we briefly introduce several prototype devices based on magnetoelectric coupling, analyze the noteworthy application techniques, and summarize the working mechanisms and performances of devices including tunable inductors, RF/microwave filters, magnetoelectric memories, energy harvesters, magnetoelectric sensors, magnetoelectric antennas, etc. Besides, we discuss the issues and challenges in researches of multiferroic magnetoelectric devices, and present the perspectives for improving the device performance.