Abstract
The occupied and empty electronic states of the insulator Ce have been studied by high-energy spectroscopies. The outer-level spectra reveal empty localized states within the band gap. The core-level spectra display different final-state populations of the localized states which are well predicted by a many-body calculation taking into account the presence of -symmetry admixture in the valence band. A mixed valence can be definitely excluded in Ce.
- Received 1 March 1984
DOI:https://doi.org/10.1103/PhysRevLett.53.202
©1984 American Physical Society