TY - JOUR
T1 - Characterization of Chaotic States of Parallel-Pumped Magnons in Yttrium Iron Garnet
AU - Mino, Michinobu
AU - Yamazaki, Hitoshi
PY - 1986/12
Y1 - 1986/12
N2 - 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 Poincare sections are obtained. The largest Lyapunov exponent, which describes the degree of chaos, is obtained as 0.34. The Poincare sections of the phase space trajectories exhibit the stretching and holding which are characteristics of strange attractors.
AB - 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 Poincare sections are obtained. The largest Lyapunov exponent, which describes the degree of chaos, is obtained as 0.34. The Poincare sections of the phase space trajectories exhibit the stretching and holding which are characteristics of strange attractors.
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U2 - 10.1143/JPSJ.55.4168
DO - 10.1143/JPSJ.55.4168
M3 - Article
AN - SCOPUS:0041126897
SN - 0031-9015
VL - 55
SP - 4168
EP - 4171
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 12
ER -