Bistable characteristics of a nonlinear multiferroic composite resonator containing ferromagnetic and piezoelectric layers are investigated. The resonator was a borosilicate glass substrate of 25 mm × 2 mm dimensions and 150 μm thickness with a 2 μm thick amorphous ferromagnetic FeCoSiB layer and a 2 μm thick piezoelectric AlN layer deposited on its sides by magnetron sputtering. The resonator was excited by ac voltage at a frequency of 156 kHz, matching its longitudinal acoustic resonance frequency. The bistability loops were observed with increasing and decreasing frequency at constant excitation voltage and with increasing and decreasing voltage at constant frequency. With increasing excitation voltage, the resonator frequency first decreases by ∼0.7 kHz and then increases again to the initial value. A bistability model is suggested that uses Lorentzian shape resonance line and measured dependences of the resonance frequency and transmission coefficient on the output signal, which quantitatively describes experimental data. It is shown that bistability in a multiferroic resonator arises due to the nonlinearity of the ferromagnetic layer.Bistable characteristics of a nonlinear multiferroic composite resonator containing ferromagnetic and piezoelectric layers are investigated. The resonator was a borosilicate glass substrate of 25 mm × 2 mm dimensions and 150 μm thickness with a 2 μm thick amorphous ferromagnetic FeCoSiB layer and a 2 μm thick piezoelectric AlN layer deposited on its sides by magnetron sputtering. The resonator was excited by ac voltage at a frequency of 156 kHz, matching its longitudinal acoustic resonance frequency. The bistability loops were observed with increasing and decreasing frequency at constant excitation voltage and with increasing and decreasing voltage at constant frequency. With increasing excitation voltage, the resonator frequency first decreases by ∼0.7 kHz and then increases again to the initial value. A bistability model is suggested that uses Lorentzian shape resonance line and measured dependences of the resonance frequency and transmission coefficient on the output signal, which quantitatively descri...

中文翻译：

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多铁性复合谐振器中的双稳态

研究了包含铁磁层和压电层的非线性多铁性复合谐振器的双稳态特性。谐振器是 25 mm × 2 mm 尺寸和 150 μm 厚的硼硅玻璃基板，具有 2 μm 厚的非晶铁磁 FeCoSiB 层和 2 μm 厚的压电 AlN 层，通过磁控溅射沉积在其侧面。谐振器由频率为 156 kHz 的交流电压激发，与其纵向声学谐振频率相匹配。在恒定激励电压下随着频率的增加和降低以及在恒定频率下随着电压的增加和降低观察到双稳态回路。随着激励电压的增加，谐振器频率首先降低~0.7 kHz，然后再次增加到初始值。建议使用洛伦兹形状共振线和测量的共振频率和传输系数对输出信号的依赖性的双稳态模型，该模型定量地描述了实验数据。结果表明，铁磁层的非线性导致了多铁性谐振器的双稳态。研究了包含铁磁层和压电层的非线性多铁性复合谐振器的双稳态特性。谐振器是 25 mm × 2 mm 尺寸和 150 μm 厚的硼硅玻璃基板，具有 2 μm 厚的非晶铁磁 FeCoSiB 层和 2 μm 厚的压电 AlN 层，通过磁控溅射沉积在其侧面。谐振器由频率为 156 kHz 的交流电压激发，与其纵向声学谐振频率相匹配。在恒定激励电压下随着频率的增加和降低以及在恒定频率下随着电压的增加和降低观察到双稳态回路。随着激励电压的增加，谐振器频率首先降低~0.7 kHz，然后再次增加到初始值。提出了一种双稳态模型，该模型使用洛伦兹形谐振线和测量的谐振频率和传输系数对输出信号的依赖关系，定量描述...