Strange Attractor of Chaotic Magnons Observed in Ferromagnetic (CH<SUB>3</SUB>NH<SUB>3</SUB>)<SUB>2</SUB>CuCl<SUB>4</SUB>
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- Yamazaki Hitoshi
- Department of Physics, Faculty of Science, Okayama University
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- Mino Michinobu
- Department of Physics, Faculty of Science, Okayama University
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- Nagashima Hiroyuki
- Faculty of Liberal Arts, Shizuoka University
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- Warden Mike
- Physics Institute, University of Zurich
Bibliographic Information
- Other Title
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- Strange Attractor of Chaotic Magnons Observed in Ferromagnetic(CH3NH3)2CuCl4
- Strange Attractor of Chaotic Magnons Ob
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Abstract
By parallel pumping experiments in ferromagnetic (CH3NH3)2CuCl4 chaotic auto-oscillations of magnon amplitude are observed at the pumping frequency of 9.39 GHz and the temperature of 1.65 K. Strange attractors constructed in three-dimensional phase space from time series data of chaotic oscillations display properties of stretching and folding of the sheet of trajectories. Fractal dimensions of strange attractors are obtained by the method of the correlation integral as a function of driving microwave power. With increasing driving power fractal dimension increases from 1.6 to 3.4. The largest Lyapunov exponent is obtained as 0.43±0.05 by using empirical return maps. The chaotic state arises directly from period-two oscillations without cascade of period doubling bifurcations.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 56 (2), 742-750, 1987
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679163320064
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- NII Article ID
- 210000093817
- 110001960321
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- NII Book ID
- AA00704814
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- BIBCODE
- 1987JPSJ...56..742Y
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- COI
- 1:CAS:528:DyaL2sXitVKnurw%3D
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 3114595
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed
