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Title: The apparent absence of chemical sensitivity in the 4d and 5d X-ray absorption spectroscopy of uranium compounds

Journal Article · · Journal of Electron Spectroscopy and Related Phenomena
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

X-ray absorption spectroscopy (XAS) and related derivative measurements have been used to demonstrate that the Pu 5f states are strongly relativistic and have a 5f occupation number near 5. Owing to the success in this regime, it has been argued that the XAS measurements should be a powerful tool to probe 5f occupation variation, both as a function of elemental nature (actinide atomic number) and as a function of physical and chemical perturbation, e.g., oxidation state. We show that XAS and its related measurements fail in this latter aspect for a wide variety of uranium compounds and materials. Possible causes will be discussed.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1237532
Report Number(s):
LLNL-JRNL-636485
Journal Information:
Journal of Electron Spectroscopy and Related Phenomena, Vol. 194; ISSN 0368-2048
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (2)

Electronic structure of uranium halides and oxyhalides in the solid state. An x-ray photoelectron spectral study of bonding ionicity journal October 1982
Splittings, Satellites and Fine Structure in the Soft X-ray Spectroscopy of the Actinides journal June 2013

Cited By (1)

The Issue of Pu 5f Occupation journal January 2018