Title :
Transport and magnetic properties of isolated cobalt nanowires
Author :
Vila, L. ; George, J.-M. ; Faini, G. ; Popa, A. ; Ebels, U. ; Ounadjela, K. ; Piraux, L.
Author_Institution :
Unite de Physico-Chimie et Phys. des Materiaux, Univ. Catholique de Louvain, Belgium
fDate :
9/1/2002 12:00:00 AM
Abstract :
A multiprobe connection setup has been used to study the magnetoresistance (MR) of isolated electrodeposited ferromagnetic cobalt nanowires. The MR hysteresis loops taken along different segments of the same 60-nm-diameter Co wire are found to be completely different, pointing out local inhomogeneity of the magnetic anisotropy along the same wire. These results are corroborated both by magnetic force microscopy (MFM) and transmission electron microscopy (TEM) experiments, showing a mixing of parallel and perpendicular c-axis orientations along the wire.
Keywords :
cobalt; electrodeposition; ferromagnetic materials; magnetic anisotropy; magnetic force microscopy; magnetic hysteresis; magnetoresistance; nanostructured materials; perpendicular magnetic anisotropy; transmission electron microscopy; 60 nm; Co; Co wire; MR hysteresis loops; isolated cobalt nanowires; isolated electrodeposited ferromagnetic cobalt nanowires; local inhomogeneity; magnetic anisotropy; magnetic force microscopy; magnetic properties; magnetoresistance; multiprobe connection setup; parallel c-axis orientations; perpendicular c-axis orientations; transmission electron microscopy; transport properties; Cobalt; Magnetic anisotropy; Magnetic force microscopy; Magnetic forces; Magnetic hysteresis; Magnetic properties; Magnetoresistance; Nanowires; Transmission electron microscopy; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.801957
