A crystal-chemical investigation of Cr substitution in muscovite by XANES spectroscopy |
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| Authors: | A Cardelli G Cibin M Benfatto S Della Longa M F Brigatti A Marcelli |
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| Institution: | (1) INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy E-mail: marcelli@lnf.infn.it Fax: +39-06-94032597, IT;(2) Dipartimento Medicina Sperimentale, Università L'Aquila, via Vetoio – 67100 – L' Aquila, Italy, and INFM – Universita' Roma I, P.za A. Moro 1, 00185 – Roma, Italy, IT;(3) Dipartimento di Scienze della Terra, Universita'degli Studi di Modena e Reggio Emilia, Largo S. Eufemia 19, 41100 Modena, Italy, IT |
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| Abstract: | This work introduces a novel procedure to fit the scattering features of XANES spectra. The procedure was applied and validated
on a chromium-containing muscovite for which structural and crystal-chemical characterization is available from literature.
The simulation, which involved clusters formed by up to 90 atoms, proved to be effective in representing the Cr local environment,
even if the system is characterized by a very low metal content, as demonstrated by the extremely good correspondence with
experimental data.
Received: 23 May 2002 / Accepted: 6 November 2002 |
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| Keywords: | Cr K-edge XANES spectroscopy Chromium-containing muscovite |
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