Electroplating and magnetostructural characterization of multisegmented Co54Ni46/Co85Ni15 nanowires from single electrochemical bath in anodic alumina templates
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...
| Autores principales: | , , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Springer
2013
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| Acceso en línea: | http://eprints.uanl.mx/14673/1/410.pdf |
| Sumario: | 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. |
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