3d photoionization of Xe, Cs and Ba and the collapse of the 4f wavefunction
- 1 January 1999
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 32 (5), 1295-1304
- https://doi.org/10.1088/0953-4075/32/5/019
Abstract
Total photoion yield spectra in the vicinity of the 3d thresholds of Xe, Cs and Ba are presented. These spectra were recorded with higher photon energy resolution than previously reported. For xenon the new experimental data reveal additional structures. Employing Hartree-Fock calculations, the origin of the prominent resonances is explained: for Xe and Cs the main absorption features are caused by shape resonances above threshold, whereas for Ba it is revealed that the 4f orbital has finally collapsed and the sharp resonances are caused by discrete excitations into bound states.Keywords
This publication has 30 references indexed in Scilit:
- A Review, Bibliography, and Tabulation of K, L, and Higher Atomic Shell X-Ray Fluorescence YieldsJournal of Physical and Chemical Reference Data, 1994
- Photoion Spectroscopy in theGiant Resonances of the LanthanidesPhysical Review Letters, 1989
- Accurate core binding energies of ions from Dirac-Fock calculations combined with experimental atomic binding energiesJournal of Electron Spectroscopy and Related Phenomena, 1982
- Semiempirical Solid State Shifts in the Auger-and Photoelectron EnergiesPhysica Scripta, 1982
- K-shell excitation spectra of CO, N2 and O2Journal of Electron Spectroscopy and Related Phenomena, 1980
- Continuum and discrete states in the 3d photoabsorption spectra of Xe-like ionsPhysics Letters A, 1979
- On the existence of a collective level in the Xe-atomPhysics Letters A, 1978
- Potential barrier effects in the 3d photoionization continuum of Cs IProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1976
- Observation of an ‘atomic plasmon’ resonance in the Ba I absorption spectrum between 10 and 200 ÅProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1974
- Photoionization of theShell of XenonPhysical Review Letters, 1968