Abstract
Electron-excited transitions in clean La metal and tetravelent Ce show systematic deviations from those observed in x-ray absorption. At intermediate primary energies simple selection rules allow a limited range of new singlet excitations, while triplet excitation becomes very prominent as the primary energy approaches threshold. With this technique a complete multiplet analysis of atomiclike core excitations has become possible for the first time.
- Received 28 January 1983
DOI:https://doi.org/10.1103/PhysRevLett.51.211
©1983 American Physical Society