Gallas J, Bragard J, Suarez OJ, Laroze D, Pleiner H, Vargaz P (2011)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2011
Book Volume: 84
Pages Range: 037202
Journal Issue: 3
DOI: 10.1103/PhysRevE.84.037202
We study the deterministic spin dynamics of an anisotropic magnetic particle in the presence of a magnetic field with a constant longitudinal and a time-dependent transverse component using the Landau-Lifshitz-Gilbert equation. We characterize the dynamical behavior of the system through calculation of the Lyapunov exponents, Poincaré sections, bifurcation diagrams, and Fourier power spectra. In particular we explore the positivity of the largest Lyapunov exponent as a function of the magnitude and frequency of the applied magnetic field and its direction with respect to the main anisotropy axis of the magnetic particle. We find that the system presents multiple transitions between regular and chaotic behaviors. We show that the dynamical phases display a very complicated structure of intricately intermingled chaotic and regular phases.
APA:
Gallas, J., Bragard, J., Suarez, O.J., Laroze, D., Pleiner, H., & Vargaz, P. (2011). Chaotic dynamics of a magnetic nanoparticle. Physical Review E, 84(3), 037202. https://dx.doi.org/10.1103/PhysRevE.84.037202
MLA:
Gallas, Jason, et al. "Chaotic dynamics of a magnetic nanoparticle." Physical Review E 84.3 (2011): 037202.
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