Ionization potentials and electron affinities of Rg, Cn, Nh, and Fl superheavy elements

M. Y. Kaygorodov; D. P. Usov; E. Eliav; Y. S. Kozhedub; A. V. Malyshev; A. V. Oleynichenko; V. M. Shabaev; L. V. Skripnikov; A. V. Titov; I. I. Tupitsyn; A. V. Zaitsevskii

doi:10.1103/physreva.105.062805

arXiv · 2202.08304

Ionization potentials and electron affinities of Rg, Cn, Nh, and Fl superheavy elements

M. Y. Kaygorodov·D. P. Usov·E. Eliav·Y. S. Kozhedub·A. V. Malyshev·A. V. Oleynichenko·V. M. Shabaev·L. V. Skripnikov·A. V. Titov·I. I. Tupitsyn·A. V. Zaitsevskii

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Abstract

The successive ionization potentials (IPs) and electron affinities (EAs) for superheavy elements with $111 \leq Z \leq 114$, namely, Rg, Cn, Nh, and Fl are reexamined using the relativistic Fock-space coupled-cluster method with nonperturbative single (S), double (D), and triple (T) cluster amplitudes (FS-CCSDT). For the most of considered quantities, the triple-amplitude contributions turn out to be important. The Breit and frequency-dependent Breit corrections are evaluated by means of the configuration-interaction method. The quantum-electrodynamics corrections to the IPs and EAs are taken into account within the model-QED-operator approach. The obtained results are within 0.10 eV uncertainty.

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M. Y. Kaygorodov, D. P. Usov, E. Eliav, Y. S. Kozhedub, A. V. Malyshev, A. V. Oleynichenko, V. M. Shabaev, L. V. Skripnikov, A. V. Titov, I. I. Tupitsyn, A. V. Zaitsevskii. 2022-02-16. Ionization potentials and electron affinities of Rg, Cn, Nh, and Fl superheavy elements. https://doi.org/10.1103/physreva.105.062805

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