Controlled growth of CoCu nanowires and application to multilayered CoCu/Cu nanowires with selected anisotropy

• Published in: Journal of physics. D, Applied physics Applied physics, 2006-12, Vol.39 (23), p.5025-5032
• Main Authors: Darques, Michaël, Bogaert, Anne-Sophie, Elhoussine, Fanny, Michotte, Sébastien, de la Torre Medina, Joaquín, Encinas, Armando, Piraux, Luc
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Magnetic properties and materials; Magnetic properties of nanostructures; Materials science; Nanoscale materials and structures: fabrication and characterization; Other topics in nanoscale materials and structures; Physics
• ISSN: 0022-3727; 1361-6463
• DOI: 10.1088/0022-3727/39/23/019

The effects of the solution pH and deposition potential on the structural and magnetic properties in arrays of electrodeposited CoCu nanowires with low Cu content have been studied combining ferromagnetic resonance, magnetometry and electron transmission microscopy. It is shown that, depending on the synthesis parameters, the average crystallographic structure can be controlled, giving rise to sensible changes in the effective crystal anisotropy field which varies from -4.05 to +2.75 kOe. It is also shown that in CoCu/Cu multilayered nanowires, the preferential structure of the CoCu-magnetic layer can also be controlled by both pH and deposition potential, opening an interesting route for designing multilayered CoCu/Cu nanowires with controlled and alternated crystal anisotropy.