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Synthesis of highly crystalline and monodisperse cobalt ferrite nanocrystals
Cited 279 time in
Web of Science
Cited 303 time in Scopus
- Authors
- Issue Date
- 2002-07
- Publisher
- American Chemical Society
- Citation
- Journal of Physical Chemistry B, Vol.106 No.27, pp.6831-6833
- Abstract
- Highly crystalline and monodisperse cobalt ferrite nanocrystals were fabricated by the high-temperature aging of a metal-surfactant complex followed by mild oxidation. Particle sizes were varied from 4 to 9 nm by changing the experimental conditions. Transmission electron microscopic (TEM) images of the particles showed two- and three-dimensional assembly of the particles, demonstrating the uniformity of the nanocrystals: Electron diffraction, X-ray diffraction, and high-resolution transmission electron microscopic images of the nanocrystals confirmed the highly crystalline nature of the cobalt ferrite structure. The elemental analysis confirmed the stoichiometry of cobalt ferrite, despite some variations in the relative atomic composition of nanocrystals. The nanocrystals were found to have typical behaviors of magnetic nanocrystals and the narrow energy barrier distributions of magnetic anisotropy, implying that the nanocrystals obtained are very uniform.
- ISSN
- 1520-6106
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