Magnetic nanotubes produced by hydrogen reduction

Y. C. Sui, R. Skomski, K. D. Sorge, D. J. Sellmyer

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Abstract

Electron microscopy, x-ray diffraction, and superconducting quantum interference device magnetometry were used for investigating FePt anf Fe 3O 4 nanotubes produced by hydrogen reduction in nanochannels of porous alumina. By reducing an appropriate Fe chloride anf Pt chloride mixture inside the pores of alumina templates, the nanotubes of FePt were synthesized. Thermal pyrolysis of iron nitrate led to the formation of Fe 3O 4 nanotubes in the same templates before hydrogen reduction. The tubes were found to be polycrystalline and the composition of the tubes strongly depended upon the reducing time and temperature, as indicated by the analysis of the microstructure.

Original languageEnglish (US)
Pages (from-to)7151-7153
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
Publication statusPublished - Jun 1 2004

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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