Chiral Magnetoacoustics

Nonreciprocal microwave devices are key components of communication platforms. Nonreciprocity can arise in chiral systems, where chirality refers to a fixed handedness that is preserved under time reversal. Chiral excitations (quasiparticles) provide opportunities for the realization miniaturized with directional properties. In particular, surface acoustic waves propagate magnetic media and display pronounced nonreciprocal character. Because an established technological platform, hybrid wave/spin wave have great application potential. this mini-review, we introduce general concept magnetoacoustic waves. We discuss widely employed phenomenological model based on magnetoelastic coupling magneto-rotation quantitatively accounts many experimental findings give brief overview over selected experiments advances emerging research field.