Magnetic metamaterials engineered to mimic the unique physical properties of graphene

https://www.eurekalert.org/news-releases/1119113

"arranging magnetic spins (magnons) in thin film, with specific hexagonal hole pattern, results in behavior exactly like graphene's massless electrons... 9 distinct energy bands enables simultaneous topological effects/ low-dispersion states not easily achieved in graphene... radiofrequency/ microwave cellular networks, where microwave circulators, which ensure radio signals travel in 1 direction, are shrink to µm scale, allowing for much smaller and more efficient wireless hardware"