Gallas J, Perez LM, Bragard J, Mancini H, Cabanas AM, Suarez OJ, Laroze D (2015)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2015
Book Volume: 10
Pages Range: 209--221
Journal Issue: 1
We report a systematic investigation of the magnetic anisotropy effects observed in the deterministic spin dynamics of a magnetic particle in the presence of a time-dependent magnetic field. The system is modeled by the Landau-Lifshitz-Gilbert equation and the magnetic field consists of two terms, a constant term and a term involving a harmonic time modulation. We consider a general quadratic anisotropic energy with three different preferential axes. The dynamical behavior of the system is represented in Lyapunov phase diagrams, and by calculating bifurcation diagrams, Poincaré sections and Fourier spectra. We find an intricate distribution of shrimp-shaped regular island embedded in wide chaotic phases. Anisotropy effects are found to play a key role in defining the symmetries of regular and chaotic stability phases.
APA:
Gallas, J., Perez, L.M., Bragard, J., Mancini, H., Cabanas, A.M., Suarez, O.J., & Laroze, D. (2015). Effect of anisotropies on the magnetization dynamics. Networks and Heterogeneous Media, 10(1), 209--221. https://doi.org/10.3934/nhm.2015.10.209
MLA:
Gallas, Jason, et al. "Effect of anisotropies on the magnetization dynamics." Networks and Heterogeneous Media 10.1 (2015): 209--221.
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