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Fabrication and magnetic properties of ordered macroporous nickel structures

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)D65-D69
JournalJournal of the Electrochemical Society
Volume154
Issue number2
DOIs
StatePublished - 2007
Externally publishedYes

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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