NDLI: Mössbauer spectroscopy study of iron oxide nanoparticles obtained by spray pyrolysis

Content Provider	Springer Nature Link
Author	Marques, R. F. C. Rodriguez, A. F. R. Coaquira, J. A. H. Santos, J. G. Garg, V. K. Jafelicci, M. Ribeiro, S. J. L. Verelst, M. Dexpert Ghys, J. Morais, P. C.
Copyright Year	2009
Abstract	Mössbauer spectroscopy was used in this study to investigate magnetite nanoparticles, obtained by spray pyrolysis and thermal treatment under H2 reduction atmosphere. Room temperature XRD data indicate the formation of magnetite phase and a second phase (metallic iron) which amount increases as the time of reduction under H2 is increased. While room temperature Mössbauer data confirm the formation of the cubic phase of magnetite and the occurrence of metallic iron phase, the more complex features of 77 K-Mössbauer spectra suggest the occurrence of electronic localization favored by the different crystalline phase of magnetite at low temperatures which transition to the lower symmetry structure should occur at T ∼120 K (Verwey transition).
Starting Page	159
Ending Page	166
Page Count	8
File Format	PDF
ISSN	03043843
Journal	Hyperfine Interactions
Volume Number	189
Issue Number	1-3
e-ISSN	15729540
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-03-31
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Magnetite Hematite Spray pyrolysis Mössbauer spectroscopy Surfaces and Interfaces, Thin Films Condensed Matter Atoms, Molecules, Clusters and Plasmas Nuclear Physics, Heavy Ions, Hadrons
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics

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