Growth and Magnetic Properties of CoPtAu Nanowires

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 cm 2 show ferromagnetic behavior and have an easy-axis parallel to the nanowire axis.

Fabrication Process of Ag/AgCl Reference Pseudo-Electrode Based on Electrodeposition of Au on Pt Surfaces from Formaldehyde Baths: Chemical Stability and Adherence

“…In order to improve the adherence, an intermediate layer of gold was proposed. Electrochemical deposition of gold has many applications including electrode and circuit's metallization (5-7), bumps for electronic and magnetic devices (8,9). Noncyanide baths has been developed to overcome those problems, most of them based on Au(I)-sulfide complex (5,(10)(11)(12)(13).…”

Characterization of Gold-Formaldehyde Baths for Electrochemical Deposition

“…Electrochemical deposition of gold has many applications including electrode and circuits' metallization (1)(2)(3), bumps for electronic and magnetic devices (4,5). Also, soft and hard gold (3,6) have been used in electronics industry.…”