Domain wall motion in nanowires
The manipulation and control of magnetic domain walls (DWs) in
ferromagnetic nanowires has recently become a subject of intense
experimental and theoretical research. The rapidly growing interest in
the physics of the DW motion can be mainly explained by a promising
possibility of using DWs as the basis for next-generation memory and
logic devices.
In ferromagnetic nanowires, the dynamics of the orientation of the
magnetization distribution and, therefore DW motion, is described by the
one-dimensional Landau-Lifshitz-Gilbert (LLG) equations. These equations
have a variety of solutions corresponding to different micromagnetic
regimes. This project involves investigation of LLG equations of
micromagnetics. The questions we would like to address include: (a)
classification of solutions of LLG; (b) stability of solutions of LLG;
(c) controlling DW motion using external field.
People involved in the project: Y. Gou, A. Goussev, R. Lund and J.M. Robbins.