Ferromagnetic multipods fabricated by solution phase synthesis and hydrogen reduction

Y. C. Sui, Y. Zhao, J. Zhang, S. Jaswal, X. Z. Li, D. J. Sellmyer

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

A simple approach combining pyrolysis and hydrogen reduction is formulated for making ferromagnetic-branched nanostructures called Co multipods. The CoO multipods (branched nanostructures) were produced through the pyrolysis of cobalt-oleate in octadecane at 280°C with the presence of oleic acid under the protection of pure nitrogen. The angles between the nearest arms are 90°. After the reduction of the branched CoO nanostructures in flowing hydrogen gas in a tubular oven at 290°C, the CoO is reduced to pure cobalt with hexagonal crystal structure and the branched shapes are retained. Anisotropic magnetic properties were found for cobalt multipods on silicon substrates.

Original languageEnglish (US)
Pages (from-to)3115-3117
Number of pages3
JournalIEEE Transactions on Magnetics
Volume43
Issue number6
DOIs
StatePublished - Jun 1 2007

Keywords

  • Chemical synthesis
  • Co multipods
  • Hydrogen reduction
  • Magnetically anisotropic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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