Vast spin waveguide propagated quantum ripples in magnetic materials could make AI networks 10x more energy efficient

https://www.sciencedaily.com/releases/2025/07/250710113143.htm

"inscribed individual spin-wave waveguides into 110 nm low attenuation yttrium iron garnet using silicon ion beam, producing large network with 198 nodes... attenuation connected spin waves forming larger circuit propagated record distance enabled by yttrium iron garnet having the lowest attenuation currently known for any material... control over spin wave properties: precisely alter wavelength/ reflection at certain interface... flexible/ reproducible fabrication"