Title :
Domain Walls in Nanostripes of Cubic-Anisotropy Ferromagnetic Materials
Author :
Janutka, Andrzej ; Gawronski, Przemyslaw
Author_Institution :
Inst. of Phys., Wroclaw Univ. of Technol., Wroclaw, Poland
Abstract :
We discuss the structure of the domain walls (DWs) in ferromagnetic nanostripes formed of cubic-anisotropy materials. Within certain approximations, such stationary textures are described by soliton solutions to the sine-Gordon equation in 2-D that is obtained with a constraint on the Landau-Lifshitz equation. Preferable stable and metastable types of the DWs (transverse DWs, vortex DWs, and others) are established with dependence on the stripe width and thickness using the micromagnetic simulations for a set of the so-called spintronic materials, which are of the current interest with regard to controlling the DW state. The simulated DW textures are classified on the basis of the stationary multisoliton states of the sine-Gordon model in 2-D.
Keywords :
ferromagnetic materials; magnetic anisotropy; magnetic domain walls; magnetoelectronics; micromagnetics; nanomagnetics; nanostructured materials; sine-Gordon equation; solitons; 2-D stationary textures; Landau-Lifshitz equation; cubic-anisotropy ferromagnetic materials; domain wall textures; ferromagnetic nanostripes; micromagnetic simulations; sine-Gordon equation; soliton solutions; spintronic materials; stationary multisoliton states; Anisotropic magnetoresistance; Equations; Magnetic domains; Magnetostatics; Mathematical model; Perpendicular magnetic anisotropy; Magnetic domain walls (DWs); nanowires;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2323342