Hyper-chaotic Magnetisation Dynamics of Two Interacting Dipoles

Áreas de investigación:

• Methodology - Machine learning

Año:

2015

Tipo de publicación:

Artículo

Palabras clave:

Magnetisation dynamics, Dipolar interaction, Hyper-chaos

Autores:

• Urzagasti, D.
• Becerra-Alonso, David
• Pérez, L. M.
• Mancini, H. L.
• Laroze, D.

Journal:

Journal of Low Temperature Physics

Volumen:

181

Número:

5

Páginas:

211–222

Mes:

December

ISSN:

0022-2291

BibTex:

@article{chaosDavidJournal2015, author = "D. Urzagasti and David Becerra-Alonso and L. M. P{\'e}rez and H. L. Mancini and D. Laroze", abstract = "The present work is a numerical study of the deterministic spin dynamics of two interacting anisotropic magnetic particles in the presence of a time-dependent external magnetic field using the Landau–Lifshitz equation. Particles are coupled through the dipole–dipole interaction. The applied magnetic field is made of a constant longitudinal amplitude component and a time-dependent transversal amplitude component. Dynamical states obtained are represented by their Lyapunov exponents and bifurcation diagrams. The dependence on the largest and the second largest Lyapunov exponents, as a function of the magnitude and frequency of the applied magnetic field, and the relative distance between particles, is studied. The system presents multiple transitions between regular and chaotic behaviour depending on the control parameters. In particular, the system presents consistent hyper-chaotic states.", awards = "JCR(2015): 0.787 Position: 120/145 (Q4) Category: PHYSICS, APPLIED", comments = "JCR(2015): 0.787 Position: 120/145 (Q4) Category: PHYSICS, APPLIED", doi = "10.1007/s10909-015-1338-2", issn = "0022-2291", journal = "Journal of Low Temperature Physics", keywords = "Magnetisation dynamics, Dipolar interaction, Hyper-chaos", month = "December", note = "JCR(2015): 0.787 Position: 120/145 (Q4) Category: PHYSICS, APPLIED", number = "5", pages = "211–222", title = "{H}yper-chaotic {M}agnetisation {D}ynamics of {T}wo {I}nteracting {D}ipoles", url = "http://dx.doi.org/10.1007/s10909-015-1338-2", volume = "181", year = "2015", }

Nota:

JCR(2015): 0.787 Position: 120/145 (Q4) Category: PHYSICS, APPLIED

Abstract:

The present work is a numerical study of the deterministic spin dynamics of two interacting anisotropic magnetic particles in the presence of a time-dependent external magnetic field using the Landau–Lifshitz equation. Particles are coupled through the dipole–dipole interaction. The applied magnetic field is made of a constant longitudinal amplitude component and a time-dependent transversal amplitude component. Dynamical states obtained are represented by their Lyapunov exponents and bifurcation diagrams. The dependence on the largest and the second largest Lyapunov exponents, as a function of the magnitude and frequency of the applied magnetic field, and the relative distance between particles, is studied. The system presents multiple transitions between regular and chaotic behaviour depending on the control parameters. In particular, the system presents consistent hyper-chaotic states.

Comentarios:

JCR(2015): 0.787 Position: 120/145 (Q4) Category: PHYSICS, APPLIED