Title :
Magnetoresistance of a single domain wall in Co and Ni nanowires
Author :
Radulescu, A. ; Ebels, U. ; Henry, Y. ; Ounadjela, K. ; Duvail, J.L. ; Piraux, L.
Author_Institution :
Unite de Physico-Chimie et Phys. des Mater., Univ. Catholique de Louvain, Belgium
fDate :
9/1/2000 12:00:00 AM
Abstract :
We report on the domain wall magnetoresistance of Co and Ni nanowires of 35 nm on diameter or less. The enhancement of the resistance due to an isolated domain wall is clearly evidenced from magnetoresistance hysteresis loops obtained under parallel and perpendicular fields. The domain walls magnetoresistance effect is by one order of magnitude smaller in Ni than in Co and it was observed only at low temperature for Ni nanowires. The formation and motion of domain walls is demonstrated by MFM experiments
Keywords :
cobalt; ferromagnetic materials; hysteresis; magnetic domain walls; magnetoresistance; nanostructured materials; nickel; Co; Co nanowires; MFM experiments; Ni; Ni nanowires; hysteresis loops; low temperature; magnetic nanowire; magnetic structure imaging; magnetoresistance; single domain wall; spin relaxation; Anisotropic magnetoresistance; Biomembranes; Geometry; Gold; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Nanowires; Perpendicular magnetic anisotropy; Strips;
Journal_Title :
Magnetics, IEEE Transactions on
