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

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

2577

Lastpage

2579

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.801957

Filename

1042272