Investigating the Uranium Electronic Structure in Pristine UTe₂ via HERFD-XANES and RIXS: A Comparative Analysis with Other p-Ligand Systems

DOI

We propose to investigate the uranium chemical state in ultra-clean samples of the recently discovered unconventional superconductor UTe2 using high-energy resolution fluorescence detection X-ray absorption near edge spectroscopy (HERFD-XANES) and Resonant Inelastic X-ray Scattering (RIXS) at the uranium M₄ edge, comparing the results with UGe2 and previously measured UGa2. HERFD-XANES and RIXS have proven effective [1] in providing fingerprint information on the oxidation state, probing 5f occupancy, and offering detailed insights into mixed-valence states in actinide materials. We anticipate that applying this high-resolution spectroscopic technique to UX₂ compounds will yield crucial information on their electronic structure and enhance our understanding of how different p-block ligands influence the 5f electron configurations and consequently, the resulting materials’ properties.

Identifier
DOI https://doi.org/10.15151/ESRF-ES-2097540181
Metadata Access https://icatplus.esrf.fr/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatplus.esrf.fr:inv/2097540181
Provenance
Creator Lucia AMIDANI ORCID logo; Evgenia TERESHINA-CHITROVA ORCID logo; SONU GEORGE ALEX
Publisher ESRF (European Synchrotron Radiation Facility)
Publication Year 2028
Rights CC-BY-4.0; https://creativecommons.org/licenses/by/4.0
OpenAccess true
Representation
Resource Type Data from large facility measurement; Collection
Discipline Particles, Nuclei and Fields