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

Abstract

The successive ionization potentials (IPs) and electron affinities (EAs) for superheavy elements with $111\le Z\le 114$, 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.

10 pages, 6 tables

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Cited by in corpus (6)

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• Model-QED-operator approach to relativistic calculations of the nuclear recoil effect in many-electron atoms and ions
• Isotope-shift factors with quantum electrodynamics effects for many-electron systems: A study of the nuclear charge radius of ${}^{26m}$Al
• Calculation of the moscovium ground-state energy by quantum algorithms
• Calculations of the binding-energy differences for highly-charged Ho and Dy ions