Characterization of Chaotic States of Parallel-Pumped Magnons in Yttrium Iron Garnet
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概要
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Parallel pumping experiments in YIG magnons have been performed at 4.2 K.Above the spin-wave instability threshold, chaotic auto-oscillations are observed.From time-series data, return maps, fractal dimensions, positive Lyapunov exponents, phase space portraits of strange attractors and two-dimensional Poincaresections are obtained. The largest Lyapunov exponent, which describes the degree ofchaos, is obtained as 0.34. The Poincare sections of the phase space trajectories exhibit the stretching and holding which are characteristics of strange attractors.
- 社団法人日本物理学会の論文
- 1986-12-15
著者
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Yamazaki Hitoshi
Department Of Ophthalmology Hirosaki University School Of Medicine
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Mino Michinobu
Department Of Physics Faculty Of Science Okayama University
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Yamazaki Hitoshi
Department Of Ophthalmology Hirosaki University Graduate School Of Medicine
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