Effect of Spin-Orbit Coupling on Decay Widths of Electronic Decay Processes

Elke Fasshauer

doi:10.1063/5.0002243

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arXiv · 2001.08441

Effect of Spin-Orbit Coupling on Decay Widths of Electronic Decay Processes

Elke Fasshauer

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Abstract

Auger-Meitner processes are electronic decay processes of energetically low-lying vacancies. In these processes, the vacancy is filled by an electron of an energetically higher lying orbital, while another electron is simultaneously emitted to the continuum. In low-lying orbitals relativistic effects can not even be neglected for light elements. At the same time lifetime calculations are computationally expensive. In this context, we investigate which effect spin-orbit coupling has on Auger-Meitner decay widths and aim for a rule of thumb for the relative decay widths of initial states split by spin-orbit coupling. We base this rule of thumb on Auger-Meitner decay widths of Sr4$p^{-1}$ and Ra6$p^{-1}$ obtained by relativistic FanoADC-Stieltjes calculations.

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Elke Fasshauer. 2020-01-23. Effect of Spin-Orbit Coupling on Decay Widths of Electronic Decay Processes. https://doi.org/10.1063/5.0002243

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