Analysis of the broadband chaotic spin-wave excitations in an active ring oscillator based on a metalized ferrite film

Analysis of the broadband chaotic spin-wave excitations in an active ring oscillator based on a metalized ferrite film
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基于金属化铁氧体薄膜的有源环形振荡器中宽带混沌自旋波激励分析

DOI:
10.1088/1742-6596/769/1/012089
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发表时间:
2016
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
S. O. Demokritov
S. O. Demokritov
中科院分区:
--
文献类型:
--
作者:
A. V. Kondrashov;A. B. Ustinov;B. A. Kalinikos;S. O. Demokritov

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本文首次对金属化铁氧体薄膜有源环形振荡器中四波参量过程的发展所形成的宽带混沌非线性自旋波激发进行了实验研究。我们发现,增加的振荡功率导致的Hopf分岔序列。观察到单色,周期性准周期和混沌激发。混沌激发的频谱由一系列频率分离良好的混沌带组成。讨论了混沌吸引子的参数。
This paper reports the first experimental study of broadband chaotic nonlinear spin-wave excitations which is formed through development of four-wave parametric processes in active ring oscillator based on metallized ferrite film. We find that an increase in the oscillation power leads to Hopf bifurcations sequence. Monochromatic, periodic quasi-periodic and chaotic excitations are observed. Spectra of the chaotic excitations consist of series of chaotic bands separated well in frequency. Parameters of the chaotic attractors are discussed.
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