|Author||Cheng, K. T. ♦ Fischer, C. F.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||ATOMIC AND MOLECULAR PHYSICS ♦ ATOMIC IONS ♦ ABSORPTION SPECTRA ♦ OSCILLATOR STRENGTHS ♦ ELECTRONIC STRUCTURE ♦ HARTREE-FOCK METHOD ♦ INNER-SHELL IONIZATION ♦ ISOELECTRONIC ATOMS ♦ MULTICHARGED IONS ♦ P STATES ♦ WAVE FUNCTIONS ♦ XENON ♦ ATOMS ♦ CHARGED PARTICLES ♦ ELEMENTS ♦ ENERGY LEVELS ♦ FLUIDS ♦ FUNCTIONS ♦ GASES ♦ IONIZATION ♦ IONS ♦ NONMETALS ♦ RARE GASES ♦ SPECTRA ♦ Atomic, Molecular & Chemical Physics- Atomic & Molecular Theory- (-1987)|
|Abstract||The effect of 4f orbital collapse on the spectra of Xe-like ions in the region of 4d..-->..nf,epsilonf excitations is studied with the use of a term-dependent Hartree-Fock technique. We find that the collapse of the 4f orbital is strongly term dependent, and that the appearance of intense absorption lines in the observed Ba/sup 2 +/ spectrum is due to the partial collapse of the 4f orbital in the 4d..-->..f/sup 1/P channel. We also show that after the 4f orbital is completely collapsed for high degrees of ionization along the isoelectronic sequence, the bulk of absorption oscillator strengths is concentrated at the 4d/sup 9/4f /sup 1/P level so that the only strong line in the spectrum is again the 4d..-->..4f /sup 1/P transition.|
|Learning Resource Type||Article|
|Publisher Department||Argonne National Laboratory, Argonne, Illinois 60439|
|Publisher Place||United States|
|Journal||Phys. Rev. A|
|Organization||Argonne National Laboratory, Argonne, Illinois 60439|
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