Ionization potential and electron affinity of superheavy element 119: Relativistic high-order coupled-cluster study with QED corrections
We report a highly accurate ab initio study of the ionization potential (IP) and electron affinity (EA) of element 119. Electronic correlation effects are treated within the relativistic coupled-cluster theory including excitations up to quadruples. The Gaunt electron-electron interaction and QED corrections are taken into account. The role of high-order correlation effects is analyzed in detail. Our recommended values for the IP and EA are 4.7839(56) and 0.6750(71) eV, respectively. These results tighten previous estimates and provide a reference point for future experiments probing periodic-law trends beyond oganesson.
Authors
- I. M. Savelyev (ORCID: https://orcid.org/0000-0003-0638-5442)
- Д. П. Усов (ORCID: https://orcid.org/0009-0001-5016-4359)
- I. I. Tupitsyn (ORCID: https://orcid.org/0000-0001-9237-5667)
- L. V. Skripnikov (ORCID: https://orcid.org/0000-0002-2062-684X)
- N. K. Dulaev (ORCID: https://orcid.org/0009-0000-0854-422X)
- В. М. Шабаев (ORCID: https://orcid.org/0000-0002-2769-6891)
- Alexander V. Oleynichenko (ORCID: https://orcid.org/0000-0002-8722-0705)
- A. R. Saetgaraev (ORCID: https://orcid.org/0009-0009-4406-064X)
Institutions
- St Petersburg University (RU)
- Petersburg Nuclear Physics Institute (RU)
- Centre of Advanced Studies (RU)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2025-10-01
- DOI
- https://doi.org/10.1103/jpj3-l4c3
- Citations
- 1
- Primary Topic
- Atomic and Molecular Physics
- Type
- article
- Field-Weighted Citation Impact
- 1.25