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Title: Observation of 5f intermediate coupling in uranium x-ray emission spectroscopy

Abstract

The first observation of Intermediate Coupling effects in the occupied 5f states has been made using X-ray Emission Spectroscopy (XES). In the past, the impact of Intermediate Coupling of the 5f states in actinides has long been observed and quantified, using X-ray Absorption Spectroscopy (XAS) to probe the unoccupied 5f states, providing great insight into the enigma of 5f electronic structure, but no measure of its effects in the occupied states had been reported. Moreover, because the 5f occupied states in UF4 are almost completely of 5f5/2 character, the observed effect in XES is twice that in XAS for UF4.

Authors:
ORCiD logo; ; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
OSTI Identifier:
1592176
Alternate Identifier(s):
OSTI ID: 1582452; OSTI ID: 1597210
Report Number(s):
LLNL-JRNL-787893
Journal ID: ISSN 2399-6528
Grant/Contract Number:  
AC02-76SF00515; AC52-07NA27344; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Journal of Physics Communications
Additional Journal Information:
Journal Name: Journal of Physics Communications Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2399-6528
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; x-ray emission; actinides; uranium; angular momentum coupling

Citation Formats

Tobin, J. G., Nowak, S., Yu, S-W, Alonso-Mori, R., Kroll, T., Nordlund, D., Weng, T-C, and Sokaras, D. Observation of 5f intermediate coupling in uranium x-ray emission spectroscopy. United Kingdom: N. p., 2020. Web. doi:10.1088/2399-6528/ab6940.
Tobin, J. G., Nowak, S., Yu, S-W, Alonso-Mori, R., Kroll, T., Nordlund, D., Weng, T-C, & Sokaras, D. Observation of 5f intermediate coupling in uranium x-ray emission spectroscopy. United Kingdom. doi:https://doi.org/10.1088/2399-6528/ab6940
Tobin, J. G., Nowak, S., Yu, S-W, Alonso-Mori, R., Kroll, T., Nordlund, D., Weng, T-C, and Sokaras, D. Fri . "Observation of 5f intermediate coupling in uranium x-ray emission spectroscopy". United Kingdom. doi:https://doi.org/10.1088/2399-6528/ab6940.
@article{osti_1592176,
title = {Observation of 5f intermediate coupling in uranium x-ray emission spectroscopy},
author = {Tobin, J. G. and Nowak, S. and Yu, S-W and Alonso-Mori, R. and Kroll, T. and Nordlund, D. and Weng, T-C and Sokaras, D.},
abstractNote = {The first observation of Intermediate Coupling effects in the occupied 5f states has been made using X-ray Emission Spectroscopy (XES). In the past, the impact of Intermediate Coupling of the 5f states in actinides has long been observed and quantified, using X-ray Absorption Spectroscopy (XAS) to probe the unoccupied 5f states, providing great insight into the enigma of 5f electronic structure, but no measure of its effects in the occupied states had been reported. Moreover, because the 5f occupied states in UF4 are almost completely of 5f5/2 character, the observed effect in XES is twice that in XAS for UF4.},
doi = {10.1088/2399-6528/ab6940},
journal = {Journal of Physics Communications},
number = 1,
volume = 4,
place = {United Kingdom},
year = {2020},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1088/2399-6528/ab6940

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