Resonance photoelectron spectroscopy of 5p hole states in atomic barium
- 14 December 1983
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 16 (23), 4339-4349
- https://doi.org/10.1088/0022-3700/16/23/017
Abstract
Photoelectron spectra of atomic barium have been recorded at several photon energies in the range 20 beta (5d). Above 21 eV, 5p ionisation begins to dominate, and the Auger spectra were used to monitor the production of the various 5p hole states. As the photon energy is scanned across the autoionising resonances, these Auger spectra indicate that excitation of 5p hole states decaying by two-step autoionisation is the dominant mode in the production of very-low-energy photoelectrons (56p2 2P32/5d autoionising level is responsible for the Auger distribution measured at hv=28.9 eV.Keywords
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