Electron affinities of alkaline-earth atoms by means of different density functionals
- 1 August 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 40 (4) , 2163-2165
- https://doi.org/10.1103/physreva.40.2163
Abstract
Various correlation energy density functionals have been used to evaluate the electron affinities of the alkaline-earth atoms. A related approach based on polarization potentials was also tested. The results give evidence for the existence of stable negative ions of the atoms Ca, Sr, and Ba. The various density functionals perform relatively well yielding qualitatively correct predictions.Keywords
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