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Chaos Appearance during Domain Wall Motion under Electronic Transfer in Nanomagnets
Fundamental Physics’ Laboratory, Group of Nonlinear Physics and Complex System, Department of Physics, Faculty of Science University of Douala, Douala, Cameroon
Fundamental Physics’ Laboratory, Group of Nonlinear Physics and Complex System, Department of Physics, Faculty of Science University of Douala, Douala, Cameroon
- 1 Fundamental Physics’ Laboratory, Group of Nonlinear Physics and Complex System, Department of Physics, Faculty of Science University of Douala, Douala, Cameroon
- 2 Fundamental Physics’ Laboratory, Group of Nonlinear Physics and Complex System, Department of Physics, Faculty of Science University of Douala, Douala, Cameroon
World Journal of Condensed Matter Physics·Volume 03 (2013)·Pages 136–143·Published 29 July 2013·DOI10.4236/wjcmp.2013.33022
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Abstract
In this paper, we study the likelihood of chaos appearance during domain wall motion induced by electronic transfer. Considering a time-varying current density theory, we proceed to a numerical investigation of the dynamics. Using the dissipation parameter, amplitude and frequency of current density as control parameters; we show how periodic regime as well as chaotic regime can be exhibited in nanomagnetic systems. Numerical results allow setting up the periodicity and quasi-periodicity of system and chaotic phenomena occurring during magnetization switching process in nano magnet through electronic transfer.
KeywordsDomain Wall MotionMagnetization DynamicsChaos Appearance
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