The coexistence of electric polarization and magnetization in multiferroic materials provides great opportunities for realizing magnetoelectric coupling, including electric field control of magnetism, or vice versa, through a strain-mediated magnetoelectric coupling in layered magnetic/ferroelectric multiferroic heterostructures. Strong magnetoelectric coupling has been the enabling factor for different multiferroic devices, which, however, has been elusive, particularly at RF/microwave frequencies. In this presentation, I will cover the the past, present, and future of Magnetoelectrics. I will focus on the most recent progress on new RF magnetoelectric materials and microsystems [1-8]. Specifically, we will introduce magnetoelectric materials and their applications in different devices, focusing on ultracompact magnetoelectric mechanical antennas, which are immune from ground plane effect with ultra-compact size, self-biased operation, excellent impedance matching, ground plane immunity, etc. These magnetodielectric and magnetoelectric antennas show great promise for applications in compact, lightweight, and power-efficient sensors, antennas, and tunable components for radars, communication systems, biomedical devices, IoT, etc.
Reference:
- B. Luo, et al. Nature Reviews Electrical Engineering, 1, 317-334 (2024).
- X. Liang, et al. Advanced Engineering Materials, 2300425 (2023).
- C. Dong, et al., Advanced Electronic Materials 8 (6), 2200013 (2022).
- M. Zaeimbashi, et al, Nature Comm. 12, 3141 (2021).
- C. Dong, et al. IEEE Antennas and Wireless Propagation Letters 19 (3), 398-402 (2020).
- M. Zeimbashi, IEEE J-ERM, 3, 206 (2019).
- C. Dong, et al. Applied Physics Letters 113 (26), 262401 (2018).
T. Nan, et al. Nature Comm. 8, 296 (2017).