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Chaos Appearance during Domain Wall Motion under Electronic Transfer in Nanomagnets

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Author(s): Donfack Gildas Hermann | Jean-Pierre Nguenang

Journal: World Journal of Condensed Matter Physics
ISSN 2160-6919

Volume: 03;
Issue: 03;
Start page: 136;
Date: 2013;
Original page

Keywords: Domain Wall Motion | Magnetization Dynamics | Chaos Appearance

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 nanomagnet through electronic transfer.
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