Author(s): Vitaliy I. Vasyuchka, Florin Ciubotaru, Andrii V. Chumak, Burkard Hillebrands, and Alexander A. Serga Surface spin waves of the Damon-Eshbach type exhibit intrinsically nonreciprocal transport properties with a chiral dynamical field structure that localizes counterpropagating waves at opposite film surfaces. Such chirality has been predicted to suppress direct backscattering in thin films within fr… [Phys. Rev. Lett. 137, 176701] Published Wed Oct 21, 2026