Abstract
Here we report on the fabrication of ordered macroporous nickel structures by electrodeposition into colloidal crystal templates formed by self-assembly of polystyrene particles with diameters from 100 nm to 1 μm. The current during deposition into well-ordered colloidal crystals with low defect density exhibits periodic oscillations associated with the change in fractional area within the crystal. Magnetic hysteresis loops and magnetoresistance measurements are performed as a function of pore diameter and film thickness. The magnetic properties can be explained by modeling the ordered macroporous nickel structures as a three-dimensional network structure with magnetic particles connected by narrow ligaments.
| Original language | English (US) |
|---|---|
| Pages (from-to) | D65-D69 |
| Journal | Journal of the Electrochemical Society |
| Volume | 154 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2007 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Electrochemistry
- Renewable Energy, Sustainability and the Environment
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