Concerning 5f electron correlation in δ -Pu
Year: 2026
Type: article
Abstract: Detailed measurements of the Pu 4f, O1s and C1s photoelectron spectra, using synchrotron-radiation soft x-rays as the excitation, have been used to investigate the question of the source of the multiplet structure in the Pu 4f spectra of δ-Pu. The conventional wisdom is that the Pu 4f multiplet structure is due to either an Anderson-Impurity-Model mechanism or different types of multi-electronic screening. Here, it is experimentally demonstrated that the multiplet structure in δ-Pu is due to sample impurities, using an extrapolation to zero concentration. This extrapolation is only possible because of the enhanced sensitivity from the synchrotron radiation.
Authors: J G Tobin, P Roussel
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,325
Funder: U.S. Department of Energy
OpenAlex ID: W7170405573