Influence of the preparation method on the properties of Cu-Co heterogeneous alloys

Cu88Co12 samples have been obtained by electrodeposition and laser ablation and have been annealed at increasing temperatures (450 degreesC, 500 degre esC and 550 degreesC) to compare the influence of the fabrication method on the magnetotransport properties of the samples. Magnetoresistance (MR) and X-ray diffraction (XRD) measurements show different properties between the samples prepared by the two techniques. It was found that the electrodepos ited (ED) samples had a larger MR. The properties of the laser-ablated samp les depend on the deposition process, showing an anisotropy when prepared w ith a smaller target rotation speed. (C) 2001 Elsevier Science B.V. All rig hts reserved.