Open AccessChaos Appearance during Domain Wall Motion under Electronic Transfer in Nanomagnets
Author(s) -
Donfack Gildas Hermann,
Jean Pierre Nguenang
Publication year - 2013
Publication title -
world journal of condensed matter physics
Language(s) - English
Resource type - Journals
eISSN - 2160-6919
pISSN - 2160-6927
DOI - 10.4236/wjcmp.2013.33022
Subject(s) - nanomagnet , chaotic , physics , dissipation , domain wall (magnetism) , amplitude , domain (mathematical analysis) , statistical physics , chaos (operating system) , magnetization , mechanics , classical mechanics , condensed matter physics , computer simulation , motion (physics) , computer science , magnetic field , optics , quantum mechanics , mathematical analysis , mathematics , computer security , artificial intelligence
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.