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Extensive relativistic-random-phase-approximation study of photoionization from atomic ytterbium

Pranawa C. Deshmukh, Steven Trent Manson

Abstract

Subshell photoionization parameters for photoionization from the 4f, 5p, and 5s subshells of atomic ytterbium have been calculated using the relativistic random-phase approximation (RRPA). Interference effects from interchannel coupling of 21 relativistic dipole channels have been included. Interesting differences in the results for 4f parameters relative to a previous eight-channel RRPA calculation have been observed and are attributed to strong effects coming from coupling with the 5p channels.

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Key concepts: Photoionization, Random phase approximation, Ytterbium, Atomic physics, Discrete dipole approximation, Physics, Coupling (piping), Dipole