Observation of Spin Wave Soliton Fractals in Magnetic Film Active Feedback Rings
Mingzhong Wu, Boris A. Kalinikos, Lincoln D. Carr, Carl E. Patton
Abstract
The manifestation of fractals in soliton dynamics has been observed for the first time. The experiment utilized self-generated spin wave envelope solitons in a magnetic film based active feedback ring. At high ring gain, the soliton that circulates in the ring breathes in a fractal pattern. The corresponding power frequency spectrum shows a comb structure, with each peak in the comb having its own comb, and so on, to finer and finer scales.
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