Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf

Today, spin waves are seen as high potential information carrier for next-generation information and communication devices. This is based on the substantially reduced energy dissipation and much smaller wavelengths of spin waves compared to traditional charge current signals. For a device implementation, however, novel concepts for the generation, manipulation, and detection of spin waves are yet to be found. Here, we report on a newly discovered concept for the generation of spin waves, which overcomes typical bandwidth limitations of traditional spin wave excitation methods. Our approach utilizes the gyration of magnetic vortex cores to generate isotropically propagating, non-reciprocal spin waves.