J. Phys. IV France 07 (1997) C1-457-C1-458
Ordinal Excitation of Three-Magnon and Four-Magnon Processes of Magnetostatic Surface Waves in YIG FilmsS. Jun1, S.A. Nikitov2, R. Marcelli3, P. De Gasperis3 and J. Pelzl1
1 Institut für Experimentalphysik III, Ruhr-Universität Bochum-Germany
2 Institute of Radioengineering and Electronics, Russian Academy of Sciences, Moscow, Russia
3 Istitudo di Elettronica dello Stato Solido del CNR, 00156 Roma, Italy
Ordinal excitations of three-magnon decay, modulation instability and four-magnon decay processes of magnetostatic surface waves propagating in a pure yttrium iron garnet film are investigated in accordance with the relationship between the magnetostatic wave frequency and the internal magnetic field. Onset of the modulation instability is realized as a result of modification of magnetostatic surface wave dispersion characteristics by a metallic ground plane.
© EDP Sciences 1997