J. Phys. IV France 07 (1997) C1-401-C1-402
Spectrum and Attenuation of Non-Linear Surface Magnetostatic Spin Waves in Ferrite FilmsA.V. Kozhevnikov1, Yu.A. Filimonov1 and S.A. Nikitov2
1 Institute of Radioengineering & Electronics, Saratov Branch, Russian Academy of Sciences, 38 Zelenaya st., 410 019 Saratov, Russia
2 Institute of Radioengineering & Electronics, Russian Academy of Sciences, 11 Mokhovaya st., 103 907 Moscow, Russia
Dispersion and attenuation of non-linear surface magnetostatic waves (MSSW) propagating in thin yttrium-irongamet (YIG) ferrite films have been studied both experimentally and theoretically. They were defined from the amplitude and phase alterations of the wave as it traveled along the "non-equilibrium" part of the film. At the border of such a non-equilibrium part the wave power is equal to the threshold value. The value for the threshold power is defined by the first- and second-order parametric decay processes for the MSSW.
© EDP Sciences 1997