Long-distance propagation of high-velocity antiferromagnetic spin waves

Hanchen Wang, Rundong Yuan, Yongjian Zhou +8

We report on coherent propagation of antiferromagnetic (AFM) spin waves over a long distance ($\sim$10 $\mu$m) at room temperature in a canted AFM $\alpha$-Fe${}_2$O${}_3$ with the Dzyaloshin…