Abstract
Si K- and L-edge ELNES spectroscopy and multiple-scattering (MS) calculations are used to examine mixed Si coordination compounds varying in SiVI:SiIV ratio. As in previous studies, the edges are influenced mainly by silicon coordination (tetrahedral vs. octahedral), as supported by the MS calculations. We demonstrate two methods semi-quantitatively to extract the value of SiVI/(SiVI+SiIV): (1) A linear relationship between the L2,3-L1 splitting and SiVI/(SiVI+SiIV) is observed, (2) a fitting method based on the coaddition of reference tetrahedral and octahedral Si spectra is applied to both Si K- and L-edge ELNES spectra.
Original language | English (US) |
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Pages (from-to) | 477-487 |
Number of pages | 11 |
Journal | Physics and Chemistry of Minerals |
Volume | 24 |
Issue number | 7 |
DOIs | |
State | Published - Sep 1997 |
ASJC Scopus subject areas
- General Materials Science
- Geochemistry and Petrology