Applications of Perovskite Multiferroic Materials in Surface Acoustic Wave Devices
摘要
Perovskite multiferroic materials having intrinsic coupling of ferroelectricity, ferromagnetism and ferroelectricity have attracted a lot of attention in the last few decades due to its versatile applications in our modern electronic world. Surface acoustic wave (SAW) devices have potential applications in new electronic technologies, such as signal processing, filtering, and sensing, specifically in telecommunications, consumer electronics, medical diagnostics, and industrial applications. SAW-based devices work on the principle of creation of acoustic waves on piezoelectric substrate and then propagating them along the surface of the substrate. In the emerging trends, advanced materials like perovskite multiferroics are used as the medium for wave propagation to control tunability and sensitivity more effectively. This chapter offers a short overview of perovskite multiferroics in respect of their contributions to SAW devices at the SAW tunable wave propagation level, sensitivity enhancement, and multifunctionality. Some of the critical frameworks include the structure and properties of perovskite multiferroics and the mechanisms of their interaction with acoustic waves. The chapter also discusses novel applications such as tunable filters, frequency-sensitive devices, and low-power wireless systems. Some of the issues relating to material integration, device scaling, and operational reliability are also considered. Finally, the opportunities of development are noted including the perovskite multiferroics in SAW technology and other areas.