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  Resonant inelastic x-ray spectroscopy on UO2 as a test case for actinide materials

Lander, G. H., Sundermann, M., Springell, R., Walters, A. C., Nag, A., Garcia-Fernandez, M., et al. (2021). Resonant inelastic x-ray spectroscopy on UO2 as a test case for actinide materials. Journal of Physics: Condensed Matter, 33(6): 06LT01, pp. 1-5. doi:10.1088/1361-648X/abc4d2.

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 Creators:
Lander, G. H.1, Author
Sundermann, M.2, Author              
Springell, R.1, Author
Walters, A. C.1, Author
Nag, A.1, Author
Garcia-Fernandez, M.1, Author
Zhou, K. J.1, Author
van der Laan, G.1, Author
Caciuffo, R.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              

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 Abstract: Resonant inelastic x-ray spectroscopy at the uranium N-4 absorption edge at 778 eV has been used to reveal the excitations in UO2 up to 1 eV. The earlier (1989) studies by neutron inelastic scattering of the crystal-field states within the H-3(4) multiplet are confirmed. In addition, the first excited state of the F-3(2) multiplet at similar to 520 meV has been established, and there is a weak signal corresponding to the next excited state at similar to 920 meV. This represents a successful application of soft x-ray spectroscopy to an actinide sample, and resolves an open question in UO2 that has been discussed for 50 years. The technique is described and important caveats are drawn about possible future applications.

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Language(s): eng - English
 Dates: 2021-01-032021-01-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000599106700001
DOI: 10.1088/1361-648X/abc4d2
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Title: Journal of Physics: Condensed Matter
  Abbreviation : J. Phys. Condens. Matter.
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 33 (6) Sequence Number: 06LT01 Start / End Page: 1 - 5 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478