Temat: G30 - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On-Off Intermittency and Peculiar Properties of Attractors in a Simple Model of Chaos in Ferromagnetic Resonance
Autorzy:: Krawiecki, A.
Sukiennicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1933554.pdf
Data publikacji:: 1995-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.Ds
05.45.+b
76.50.+g
Opis:: Some non-trivial phenomena in chaos in ferromagnetic resonance above the first-order Suhl instability threshold are obtained numerically from a simple model of three interacting modes. They include sudden changes of the correlation dimension of the attractor and the largest Lyapunov exponent with the rise of the rf field amplitude. Numerical evidence is provided that these effects may result from the on-off intermittency in the system of interacting modes. These results are qualitatively similar to the experimental ones, known from the literature, obtained for in-plane magnetized thin films.
Źródło:: Acta Physica Polonica A; 1995, 88, 2; 269-281
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Theory of Nonlinear Ferromagnetic Resonance in the Samples with Magnetostatic and Exchange Boundary Conditions Imposed
Autorzy:: Krawiecki, A.
Sukiennicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1929206.pdf
Data publikacji:: 1993-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.50.+g
75.30.Ds
75.70.-i
Opis:: General theory of nonlinear ferromagnetic resonance is presented for samples with the usual magnetostatic and exchange boundary conditions imposed at the sample surface. In such samples the Suhl instabilities and other nonlinear effects occur due to nonlinear interactions of magnetostatic or dipole-exchange modes. All relevant types of interactions are included in the Hamiltonian: with the pumping field, three- and four-mode ones. Analytic calculation of the Suhl thresholds in the three possible types of instabilities in perpendicular and parallel pumping is performed for the sample in the shape of a thin slab.
Źródło:: Acta Physica Polonica A; 1993, 83, 4; 505-515
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: On-Off Intermittency in Randomly Driven Nonlinear Ferromagnetic Resonance
Autorzy:: Krawiecki, A.
Sukiennicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1943965.pdf
Data publikacji:: 1996-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 05.45.+b
76.50.+g
75.30.Ds
Opis:: Simple models of nonlinear ferromagnetic resonance are considered which describe perpendicular resonance and parallel pumping with the rf field amplitude changing randomly and chaotically in time. On-off intermittency is obtained from the numerical solution of the equations of motion for the spin-wave amplitudes when the mean value of the rf field amplitude exceeds the Suhl instability threshold. Possible experimental applications are discussed.
Źródło:: Acta Physica Polonica A; 1996, 89, 1; 37-45
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Simulations of Noise-Free Stochastic Resonance in Spin-Wave Chaos
Autorzy:: Krawiecki, A.
Reibold, E.
Benner, H.
Sukiennicki, A.
Powiązania:: https://bibliotekanauki.pl/articles/2013991.pdf
Data publikacji:: 2000-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.50.+g
75.30.Ds
05.45.+b
05.40.+j
Opis:: Numerical simulations of noise-free stochastic resonance and aperiodic stochastic resonance in chaotic ferromagnetic resonance are presented. The model, based on three-magnon interactions between the externally excited uniform mode and pairs of spin waves, shows on-off intermittency. The rf magnetic field amplitude is slowly modulated by a small periodic or aperiodic signal, and the output signal, which reflects the occurrence of laminar phases and bursts in the time series of spin-wave amplitudes, is analyzed. On variation of the dc magnetic field the signal-to-noise ratio of the output signal and the correlation function between modulation and output signal pass a maximum, which indicates the occurrence of periodic and aperiodic stochastic resonance, respectively. The role of thermal magnon excitations in the occurrence of this maximum is clarified. The results are compared with experimental findings obtained in other types of intermittency.
Źródło:: Acta Physica Polonica A; 2000, 97, 5; 975-978
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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