Observation of octahedral cation coordination on the {111} surfaces of iron oxide nanoparticles

G. R. Lovely, A. P. Brown, R. Brydson, A. I. Kirkland, R. R. Meyer, L. Chang, D. A. Jefferson, M. Falke, A. Bleloch

Research output: Contribution to journalArticlepeer-review

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Abstract

High-resolution (scanning) transmission electron micrographs taken on both aberration corrected and uncorrected microscopes, and indirect reconstructed images of mixed phase magnetite-maghemite nanoparticles all show the presence of {111} facets that terminate with enhanced contrast. This enhanced contrast is shown to be a real effect caused by the presence of additional octahedrally coordinated iron cations occupying the {111} terminating layers of these nanoparticle surfaces.

Original languageEnglish (US)
Article number093124
JournalApplied Physics Letters
Volume88
Issue number9
DOIs
StatePublished - Feb 27 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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