Properties of quasi-soliton states in nonlinear media under local high-frequency irradiation. Analytic description and comparison with numerical simulations
| Autor: | V. I. Belan, A. A. Peretyat'ko, A. S. Kovalev |
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| Rok vydání: | 2016 |
| Předmět: |
Period-doubling bifurcation
Physics Physics and Astronomy (miscellaneous) Condensed matter physics Field (physics) General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Instability Magnetic field Magnetization Amplitude 0103 physical sciences Soliton 010306 general physics 0210 nano-technology Excitation |
| Zdroj: | Low Temperature Physics. 42:1130-1138 |
| ISSN: | 1090-6517 1063-777X |
| DOI: | 10.1063/1.4973400 |
| Popis: | Spatially localized excitation of a one-dimensional magnetic system in an external high-frequency field is studied analytically (collective variable method) and numerically. The dependences of the amplitude of local quasi-soliton states on the amplitude of this field for different frequencies and damping in the system are found for the case of direct application of a localized magnetic field. The field dependence is found to have hysteresis and “instability windows” in the stationary states. Within these instability regions, the excitations become nonstationary: they are accompanied by additional periodic nutation of the magnetization vector. Here such nonlinear dynamics phenomena as period doubling and transitions to chaos are observed. |
| Databáze: | OpenAIRE |
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