Journal
PHYSICAL REVIEW B
Volume 105, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.125129
Keywords
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Funding
- DOE, National Nuclear Security Administration [DE-AC52-07NA27344]
- University of Fribourg [HPC-BEO04]
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Ligand field density functional theory calculations and high-energy-resolution fluorescence detection combined with inverse photoelectron spectroscopy measurements were used to study the 5f electronic structure of the dioxides of thorium, uranium, and plutonium, providing insight into their unoccupied states.
Ligand field density functional theory calculations of the dioxides of thorium, uranium, and plutonium have been combined with high-energy-resolution fluorescence detection (HERFD) in x-ray absorption spectroscopy and inverse photoelectron spectroscopy (IPES) measurements to provide powerful insight into the underlying composition of the unoccupied 5f electronic structure in these 5f localized systems. Fine structure in the 5f(5/2) transitions in HERFD can be directly correlated with the fine structure in the leading edge of the IPES. The shapes, intensities, and systematics in HERFD and IPES are explained in a consistent and rigorous fashion in terms of the j-specific 5f electronic structure.
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