Title :
Influence of Interlayer Coupling on Current-Induced Domain Wall Motion in Multilayered Nanowires
Author :
Ooba, A. ; Komine, T. ; Sugita, R.
Author_Institution :
Ibaraki Univ., Hitachi, Japan
Abstract :
In this study, influence of interlayer exchange coupling on current-induced domain wall motion in multilayered nanowires for achieving high density bit has been analyzed by using micromagnetic simulation. As a result, the domain walls in the continuous and the granular layers move all together even if the interlayer exchange coupling is 0 erg/cm. The domain wall velocity increases with increasing interlayer exchange coupling. The total energy difference between Néel walls increases with increasing domain wall width due to the magnetostatic field generated from the granular layer.
Keywords :
Neel temperature; exchange interactions (electron); magnetic domain walls; magnetic multilayers; micromagnetics; nanomagnetics; nanowires; Neel walls; continuous layers; current-induced domain wall motion; domain wall velocity; domain wall width; granular layers; high density bit; interlayer coupling; interlayer exchange coupling; magnetostatic field; micromagnetic simulation; multilayered nanowires; total energy difference; Couplings; Magnetic domain walls; Magnetic domains; Magnetic multilayers; Magnetostatics; Nanowires; Perpendicular magnetic anisotropy; Current-induced domain wall motion; interlayer exchange coupling; multilayered nanowire;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2201451
