Abstract
Here, we introduce the other extreme of the central-field approximation, jj-coupling. We begin by determining electronic configuration in the central-field approximation, and the following step is to consider spin–orbit interaction. This is pertinent for states with a spin–orbit interaction so strong that it swamps the angular part of the electron–electron interactions. This chapter begins by establishing which atomic terms are possible for a certain configuration, including fine-structure. Following that, we look at theoretical estimates of level energies.
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Kastberg, A. (2020). jj-Coupling. In: Structure of Multielectron Atoms. Springer Series on Atomic, Optical, and Plasma Physics, vol 112. Springer, Cham. https://doi.org/10.1007/978-3-030-36420-5_8
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DOI: https://doi.org/10.1007/978-3-030-36420-5_8
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