TITLE:
Chaos Appearance during Domain Wall Motion under Electronic Transfer in Nanomagnets
AUTHORS:
Donfack Gildas Hermann, Jean-Pierre Nguenang
KEYWORDS:
Domain Wall Motion; Magnetization Dynamics; Chaos Appearance
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.3 No.3,
July
29,
2013
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.