Probing covalency with oxidant K edge x-ray absorption spectroscopy of UF4 and UO2
Journal Article
·
· Journal of Vacuum Science and Technology A
- University of Wisconsin-Oshkosh, Oshkosh, WI (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
There are some interesting discrepancies between what has been observed experimentally and the predictions of cluster theory. In particular, the F 1s x-ray absorption spectroscopy (XAS) of uranium tetrafluoride and the U 4d XAS branching ratio for oxidized uranium are two cases in point. These discrepancies may be driven by the overestimation of covalency in cluster calculations.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
- Grant/Contract Number:
- AC52-07NA27344; AC02-05CH11231
- OSTI ID:
- 1491660
- Alternate ID(s):
- OSTI ID: 1474190; OSTI ID: 1503655
- Report Number(s):
- LLNL-JRNL-756096; 941934
- Journal Information:
- Journal of Vacuum Science and Technology A, Vol. 36, Issue 6; ISSN 0734-2101
- Publisher:
- American Vacuum SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Measurements of the band gap of by electron spectroscopy techniques
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journal | October 2019 |
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