Physical Review B
We propose a model for the dynamics of spin-wave instabilities driven by a rf field perpendicular to the dc magnetic field in the second- order Suhl process. We show that a self-oscillation arises from the dynamic nonlinear interaction between the k=0 mode driven by the pumping field and a degenerate k≠0 magnon, with frequency that depends on the dissipation rates and the nonlinear interaction parameters and not on the sample dimensions. For certain parameter values, as the driving field increases we find a period-doubling route to chaos and odd-period bifurcation windows consistent with recent experiments in yttrium iron garnet.
Citation: Pilot Scholars Version (Modified MLA Style)
Rezende, S. M.; Bonfim, O. F. de Alcantara; and de Aguiar, F. M., "Model for chaotic dynamics of the perpendicular-pumping spin-wave instability" (1986). Physics Faculty Publications and Presentations. 17.