Strain-overlap and surface-confinement engineering in AlScN/YIG magnetoacoustic devices
We establish AlScN/YIG/GGG as an integrated piezoelectric-magnetic heterostructure for electrically generating surface acoustic waves (SAWs) and coupling them to spin waves in monocrystalline YIG. Combining electrical transmission measurements of interdigital-transducer delay lines with finite-element simulations, we i...