ABSTRACT
This chapter focuses on the application of the voltage-controlled magnetic anisotropy (VCMA) effect to excite, amplify, and control propagating spin waves in magnetic nanostructures by means of an externally applied microwave electric field. It discusses the effect of the interfacial Dzyaloshinskii-Moriya interaction (IDMI) on the parametric amplification of spin waves and demonstrates that IDMI can be used for the improvement of the operational characteristics of the spin wave signal processing devices based on the VCMA effect. The chapter focuses on the recently discovered effect of VCMA. It considers the excitation of SWs in ultrathin ferromagnetic nanowires by microwave electric field. The chapter discusses the effect of the spin waves (SWs) nonreciprocity induced by the interfacial IDMI on the amplification of SWs, and shows how it can improve the characteristics of SW signal-processing devices. It presents the results of a micromagnetic study of the parametric amplification of large-amplitude SWs, which provides a qualitative understanding of the process.
