The Onset of Auto-Oscillations of Parametrically Excited Spin-Wave Pairs
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概要
- 論文の詳細を見る
The parallel ptrnaping of' spin waves in an yttriurn iron garnet (YIG) sphere placed in a mi-crowave cavity has been performed by X-band microwaves. The onset and the principal fre-quency of auto-oscillations above the threshold of spin-wave instability were stttdied at variousznagnetic fields. We fottnd anoumalous field dependence of auto-oscillations frequency in the lowfield side of the butterfly curve, where the threshold of parallel putaaping instability exhibits noanomaly. This restrlt shows that the higher order nonlinear relaxation process of paranaetricallyexcited magnons becoraaes inaaportant in a nonequilibritrzn systena.
- 社団法人日本物理学会の論文
- 1998-02-15
著者
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YAMAZAKI Hitoshi
Department of Physics,Faculty of Science,Okayama University
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Mino Michinobu
Department of Physics, Okayama University
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Yamazaki Hitoshi
Department Of Ophthalmology Hirosaki University School Of Medicine
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Vladimir L.safonov
Department Of Physics Faculty Of Science Okayama University
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Safonov Vladimir
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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URAKAMI Hisayuki
Department of Physics,Faculty of Science,Okayama University
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ZOUTA Keiichi
Department of Physics,Faculty of Science,Okayama University
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Zouta Keiichi
Department Of Physics Faculty Of Science Okayama University
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Urakami Hisayuki
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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