The direct and converse magnetoelectric (ME) effects in a Langevin-type resonator are observed and investigated for the first time. The resonator comprised a disk made of lead–zirconate titanate ceramic, located between two sapphire cylinders, with layers of amorphous ferromagnet glued to its side surfaces. ME effects were observed at frequencies of bending (∼70 kHz) and longitudinal (∼200 kHz) oscillations of the resonator upon its excitation by ac magnetic and electric fields. The field conversion efficiency for the direct ME effect was α _E ≈ 31 V (Oe⁻¹ cm⁻¹). The magnetization modulation efficiency for the converse ME effect reached α _B ≈ 0.72 G cm⁻¹ V⁻¹. The nonlinear ME effects such as frequency doubling, frequency mixing, and resonance frequency shift are observed at high field amplitudes. The magnitude of both the direct and converse ME effects in the resonator is controlled by an external dc magnetic field. The Langevin-type ME resonators can be used in highly sensitive magnetic field sensors, controlled resonators and transformers, and other components of electronics and microsystem technology.

首次观察和研究了朗之万型谐振器中的正逆磁电 (ME) 效应。谐振器包括一个由锆钛酸铅陶瓷制成的圆盘，位于两个蓝宝石圆柱体之间，其侧面粘有非晶铁磁体层。在交流磁场和电场激发谐振器的弯曲（~70 kHz）和纵向（~200 kHz）振荡频率下观察到 ME 效应。直接 ME 效应的场转换效率为α _E ≈ 31 V (Oe ^-1 cm ^-1 )。逆 ME 效应的磁化调制效率达到α _B ≈ 0.72 G cm ^-1 V ^-1. 在高场振幅下观察到非线性 ME 效应，例如倍频、混频和共振频移。谐振器中正向和反向 ME 效应的大小由外部直流磁场控制。Langevin 型 ME 谐振器可用于高灵敏度磁场传感器、受控谐振器和变压器以及电子和微系统技术的其他组件。