S
Stéphanie Rossano
Researcher at University of Paris
Publications - 55
Citations - 1361
Stéphanie Rossano is an academic researcher from University of Paris. The author has contributed to research in topics: XANES & Chemistry. The author has an hindex of 19, co-authored 48 publications receiving 1188 citations. Previous affiliations of Stéphanie Rossano include University of Marne-la-Vallée & Centre national de la recherche scientifique.
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Journal ArticleDOI
The effect of redox state on the local structural environment of iron in silicate glasses: A combined XAFS spectroscopy, molecular dynamics, and bond valence study
François Farges,François Farges,Yannick Lefrere,Yannick Lefrere,Stéphanie Rossano,Anne Berthereau,Georges Calas,Gordon E. Brown +7 more
TL;DR: In this paper, the authors used X-ray absorption fine structure (XANES) spectroscopy at the Fe K-edge to determine iron oxidation state and first-neighbor coordination number.
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Multi-spectroscopic study of Fe(II) in silicate glasses: Implications for the coordination environment of Fe(II) in silicate melts
William E. Jackson,François Farges,François Farges,Mark Yeager,Patricia A. Mabrouk,Stéphanie Rossano,Glenn A. Waychunas,Edward I. Solomon,Gordon E. Brown +8 more
TL;DR: In this article, the coordination environment of Fe(II) has been examined in seven anhydrous ferrosilicate glasses at 298 K and 1 bar using 57Fe Mossbauer, X-ray near edge structure (XANES), UV-Vis-NIR, and magnetic circular dichroism (MCD) spectroscopies.
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57 Fe Mössbauer spectroscopy of tektites
TL;DR: In this article, the authors performed room temperature spectra analysis using two complementary analytical methods based on two-dimensional distributions of both isomer shift and quadrupole splitting, and showed that ferrous iron sites are continuously distributed between four-and five-fold co-ordinated sites.
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Experimental and theoretical study of the structural environment of magnesium in minerals and silicate glasses using X-ray absorption near-edge structure
Nicolas Trcera,Delphine Cabaret,Stéphanie Rossano,François Farges,Anne-Marie Flank,P. Lagarde +5 more
TL;DR: In this article, the position of the first peak of XANES spectra is related to both coordination and polyhedron distortion changes, and the variation of the C feature (position and intensity) is strongly related to the alkali type providing information on the medium range order.
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The oxidation state of iron in silicic melt at 500 MPa water pressure
TL;DR: The dependence of the ferric-ferrous ratio in silicate melts on oxygen fugacity was studied in the system SiO2(Qz)−NaAlSi3O8(Ab)−CaAl2Si2O8 (An)−H2O using Mossbauer spectroscopy.