Title :
Growth and Magnetic Properties of CoPtAu Nanowires
Author :
Min, Ji Hyun ; Wu, Jun Hua ; Kim, Young Keun
Author_Institution :
Dept. of Mater. Sci. & Eng., Korea Univ., Seoul
Abstract :
We report the growth of CoPtAu nanowires by electrodeposition in nanoporous anodic aluminum oxide templates. The composition analysis and elemental mapping reveals that the nanowires are composed of Co, Pt and Au, which are homogenously distributed throughout the nanowires. Under the given deposition conditions, the nanowires were dominated by Pt and Au to form a cubic PtAu phase, with the existence of the CoPt tetragonal phase at higher current densities. The nanowires obtained at 3 and 5 mA/cm2 show ferromagnetic behavior and have an easy-axis parallel to the nanowire axis.
Keywords :
cobalt alloys; current density; electrodeposition; ferromagnetic materials; gold alloys; nanoporous materials; nanotechnology; nanowires; platinum alloys; Al2O3; CoPtAu; current densities; deposition conditions; electrodeposition; elemental mapping; ferromagnetic behaviour; magnetic properties; nanoporous anodic aluminum oxide templates; nanowire growth; tetragonal phases; CoPtAu; electrodeposition; magnetic; nanowire; tetragonal phase;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2001500
