title: Electroplating and magnetostructural characterization of multisegmented Co54Ni46/Co85Ni15 nanowires from single electrochemical bath in anodic alumina templates.
abstract: Highly hexagonally ordered hard anodic aluminum oxide membranes, which have been modified by a thin cover layer of SiO2 deposited by atomic layer deposition method, were used as templates for the synthesis of electrodeposited magnetic Co-Ni nanowire arrays having diameters of around 180 to 200 nm and made of tens of segments with alternating compositions of Co54Ni46 and Co85Ni15. Each Co-Ni single segment has a mean length of around 290 nm for the Co54Ni46 alloy, whereas the length of the Co85Ni15 segments was around 430 nm. The composition and crystalline structure of each Co-Ni nanowire segment were determined by transmission electron microscopy and selected area electron diffraction techniques. The employed single-bath electrochemical nanowire growth method allows for tuning both the composition and crystalline structure of each individual Co-Ni segment. The room temperature magnetic behavior of the multisegmented Co-Ni nanowire arrays is also studied and correlated with their structural and morphological properties.
authors.affiliation: Departamento de Física, Universidad de Oviedo, Calvo Sotelo s/n, Oviedo 33007, Spain. vmpp@uniovi.es.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Prida
authors.forename: Javier
authors.initials: J
authors.lastname: García
authors.forename: Lucia
authors.initials: L
authors.lastname: Iglesias
authors.forename: Victor
authors.initials: V
authors.lastname: Vega
authors.forename: Detlef
authors.initials: D
authors.lastname: Görlitz
authors.forename: Kornelius
authors.initials: K
authors.lastname: Nielsch
authors.forename: Enrique Díaz
authors.initials: ED
authors.lastname: Barriga-Castro
authors.forename: Raquel
authors.initials: R
authors.lastname: Mendoza-Reséndez
authors.forename: Arturo
authors.initials: A
authors.lastname: Ponce
authors.forename: Carlos
authors.initials: C
authors.lastname: Luna