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dc.contributor.authorPathak, H-
dc.contributor.authorSahoo, B. K-
dc.contributor.authorDas, B. P-
dc.contributor.authorVaval, N-
dc.contributor.authorPal, S-
dc.identifier.citationJournal of Physics B: Atomic, Molecular and Optical Physics, Vol. 48, No. 11, 115009en_US
dc.descriptionRestricted Accessen_US
dc.description.abstractWe employ four-component spinor relativistic equation-of-motion coupled-cluster (EOMCC) method within the single- and double- excitation approximation to calculate the single ionization potentials (IPs) and double ionization potentials (DIPs) of the He and Be isoelectronic sequences up to Ne. The obtained results are compared with the available results from the National Institute of Standards and Technology (NIST) database to test the performance of the EOMCC method. We also present intermediate results at different level of approximations in the EOMCC framework to gain insight of the effect of electron correlation. Furthermore, we investigate the dependence of the IPs and DIPs of these ions on the ionic charge and observe that these follow parabolic trends. Comparison between the trends of IPs and DIPs in both the classes of considered systems are categorically demonstrated.en_US
dc.publisherIOP Publishingen_US
dc.rights© IOP Publishing Ltd-
dc.titleA relativistic equation-of-motion coupled-cluster investigation of the trends of single and double ionization potentials in the He and Be isoelectronic systemsen_US
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