Abstract
The rare-earth based molybdenum chalcogenides, REMo6Se8 (RE = rare-earth metals) have been extensively studied because of their unique crystal structure based on Mo6Se8 clusters and their outstanding properties involving coexistence of superconductivity and magnetism. Among all these compounds, Ce and Eu based chalcogenides are magnetic and non-superconductors and possess many novel properties. Understanding their electronic structure is likely to provide valuable information about these materials. We employ X-ray absorption near-edge structure (XANES) spectroscopy at Mo and Se K-edges of EuMo6Se8 to identify the local environment respectively around Mo and Se ions and XANES spectra at L3-edge of Eu ion to identify their valence state. Results from this study demonstrate that Se ions in EuMo6Se8 are in two inequivalent sites and the valency of Eu is divalent.
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Acknowledgments
One of the authors (KA) wishes to thank French Embassy for their kind support and encouragement which in fact made him to present this work and to the IWTMC organizers for the invitation to participate at the conference. The author (WFP) would like to thank the National Science Council of Taiwan for financially supporting this research under Contract No. NSC96-2112-M032-012-MY3.
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Asokan, K., Peña, O., Le Polles, L. et al. Electronic Structure of EuMo6Se8 Studied by X-Ray Absorption Spectroscopy. J Clust Sci 20, 205–211 (2009). https://doi.org/10.1007/s10876-008-0220-7
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DOI: https://doi.org/10.1007/s10876-008-0220-7