Abstract
In this paper, we present both theoretical and experimental analysis of delayed dynamic bifurcations as could be observed by ferromagnetic resonance (FMR) on an yttrium iron garnet (YIG) sphere. In Sec. 1 the static bifurcation behaviour of the first-order Suhl instability is analyzed in terms of a two-mode model, which represents the simplest possible description of this process. In Sec. 2 our analytical results are extended to the dynamic case by means of numerical simulations, including the influence of noise. We present our experimental results and compare them with the obtained theoretical predictions.
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