ON-OFF INTERMITTENCY AND PECULIAR PROPERTIES OF ATTRACTORS IN A SIMPLE-MODEL OF CHAOS IN FERROMAGNETIC-RESONANCE

Some non-trivial phenomena in chaos in ferromagnetic resonance above t he first-order Suhl instability threshold are obtained numerically fro m a simple model of three interacting modes. They include sudden chang es of the correlation dimension of the attractor and the largest Lyapu nov exponent with the rise of the rf field amplitude. Numerical eviden ce is provided that these effects may result from the on-off intermitt ency in the system of interacting modes. These results are qualitative ly similar to the experimental ones, known from the literature, obtain ed for in-plane magnetized thin films.