Waveguides as sources of short-wavelength spin waves for low-energy ICT applications Adam Papp, György Csaba, Himadri Dey, Marco Madami, Wolfgang Porod and Giovanni Carlotti Eur. Phys. J. B, 91 6 (2018) 107 Published online: 11 June 2018 DOI: 10.1140/epjb/e2018-80623-x