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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2012

XANES study of rhenium oxide compounds at the L1 and L3 absorption edges

Résumé

We report on the study of a set of rhenium oxide reference compounds (NH4ReO4, NaReO4, ReO3, ReO2, and Re2O7) using x-ray-absorption near-edge structure. The parallel use of Re L1 and L3 absorption edges permits a concomitant understanding of both the oxidation state and the local symmetry for these compounds. Experiments are compared with ab initio simulations. A good agreement is reached in most cases. The choice of the cluster size and the calculation method (full potential or not), which are mandatory ingredients allowing a satisfactory reproduction of the recorded spectra, is discussed in detail. In the meantime, these parameters give important pieces of information on the studied materials.

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Dates et versions

hal-00687281 , version 1 (12-04-2012)

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Asma Tougerti, Sylvain Cristol, Elise Berrier, Valérie Briois, Camille La Fontaine, et al.. XANES study of rhenium oxide compounds at the L1 and L3 absorption edges. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2012, 85, pp.125136. ⟨10.1103/PhysRevB.85.125136⟩. ⟨hal-00687281⟩
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