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Structural and Elemental Characterization of Fe/Co Nanoparticles Produced through Organometallic Synthesis

Published online by Cambridge University Press:  11 February 2011

P. L. Fejes ,
F. Dumestre ,
C. Amiens ,
P. Renaud ,
B. Chaudret  and
P. Zurcher
P. L. Fejes
Affiliation:
Motorola Inc., Semiconductor Products Sector, Tempe, AZ 85284, USA
F. Dumestre
Affiliation:
LCC-CNRS, Toulouse, France
C. Amiens
Affiliation:
LCC-CNRS, Toulouse, France
P. Renaud
Affiliation:
Motorola Inc., Semiconductor Products Sector, Toulouse, France
B. Chaudret
Affiliation:
LCC-CNRS, Toulouse, France
P. Zurcher
Affiliation:
Motorola Inc., Semiconductor Products Sector, Tempe, AZ 85284, USA
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Abstract

We report on the structure of and elemental distributions within various magnetic nano-particles synthesized using organometallic precursors. The characterization was carried out using high-resolution transmission electron microscopy (HRTEM), and electron energy loss spectroscopy (EELS), with spectral imaging to investigate elemental distributions within the particles. The crystallinity and oxidation of Fe, Co and Fe-Co particles are discussed. We observe heavy oxidation of Fe particles, while Co particles show, at most, only a thin surface layer of oxide. When Fe and Co are combined to form Fe-Co particles, they are seen to be inhomogeneous, consisting of an Fe core, surrounded by a Co-rich shell.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 738: Symposium G – Spatially Resolved Characterization of Local Phenomena in Materials and Nanostructures , 2002 , G8.5
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

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