Domain wall motion in ferromagnets modelled by a quintic complex Ginzburg-Landau equation

. A quintic complex Ginzburg-Landau equation is derived from a Landau-Lifshitz-Gilbert equation and is used to describe the magnetization dynamics in a one-dimensional uni-axial ferromagnet. Trough the use of suitable approximations, we derive the magnetic solitary wave excitations solutions which h...

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Veröffentlicht in:	The European physical journal. B, Condensed matter physics Condensed matter physics, 2008-10, Vol.65 (4), p.539-545
Hauptverfasser:	Nguenang, J.-P., Njassap Njassap, T., Kofané, T. C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Complex Systems Condensed Matter Physics Condensed matter: electronic structure, electrical, magnetic, and optical properties Domain effects, magnetization curves, and hysteresis Domain walls and domain structure Exact sciences and technology Fluid- and Aerodynamics General theory and models of magnetic ordering Magnetic properties and materials Physics Physics and Astronomy Solid State Physics Statistical and Nonlinear Physics
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Beschreibung
Zusammenfassung:	. A quintic complex Ginzburg-Landau equation is derived from a Landau-Lifshitz-Gilbert equation and is used to describe the magnetization dynamics in a one-dimensional uni-axial ferromagnet. Trough the use of suitable approximations, we derive the magnetic solitary wave excitations solutions which have pulse-like shapes. Subsequent numerical simulations reveal domain wall propagation.
ISSN:	1434-6028 1434-6036
DOI:	10.1140/epjb/e2008-00362-y