Unconventional spin currents in magnetic films

• DOI: 10.1103/physrevresearch.2.023324
• Publication Date: 2020-06-12T16:31:02Z
• Authors: Dmytro A. Bozhko; Halyna Yu. Musiie...; Vasyl S. Tiberkevich; Andrei N. Slavin; Ihor I. Syvorotka; Burkard Hillebrands; Alexander A. Serga
• Keywords: Brillouin zone; Spin wave; Wave vector; Energy exchange

This work uses wavevector-resolved Brillouin light scattering spectroscopy in combination with a theory of dipole-exchange spin-wave spectra to show that, obliquely magnetized free magnetic films, the in-plane propagation spin waves is accompanied by transverse current along film normal without any corresponding transport energy.