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Title: Relativistic and correlation effects in the photoionization dynamics of oganesson (Z = 118): Spin-orbit-interaction-activated interchannel coupling effects

Abstract

High-Z atoms are excellent laboratories to study the combination of relativistic and many-electron correlation effects in electronic structure and dynamics. In the present work, the relativistic-random-phase approximation at different levels of truncation is employed to explore the final-state correlation effects in the photoelectron dynamics of the heaviest known element in the Periodic Table: oganesson (Og) with Z = 118. Here, the focus of this work is to illustrate the relativistic effects resulting from coupling different photoionization channels arising from spin-orbit split subshells, termed the spin-orbit-interaction-activated interchannel coupling effect. Comparison with the photoelectron dynamics of Rn on a qualitative level is also carried out, since Og is a homologue of Rn. The photoelectron dynamics of 7p, 7s, and 6d subshells are investigated and differences between Og and Rn, due to enhanced relativistic effects, are investigated.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [3]
  1. Indian Institute of Technology, Bihar (India)
  2. Indian Institute of Technology, Andhra Pradesh (India)
  3. Georgia State University, Atlanta, GA (United States)
Publication Date:
Research Org.:
Georgia State Univ., Atlanta, GA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1657218
Grant/Contract Number:  
FG02-03ER15428
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 102; Journal Issue: 2; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Superheavy atoms; Photoionization; Electron correlation calculations for atoms & ions; Electronic structure of atoms & molecules; Single- and few-photon ionization & excitation

Citation Formats

Jose, Jobin, Baral, S., Deshmukh, Pranawa C., and Manson, Steven T. Relativistic and correlation effects in the photoionization dynamics of oganesson (Z = 118): Spin-orbit-interaction-activated interchannel coupling effects. United States: N. p., 2020. Web. doi:10.1103/physreva.102.022813.
Jose, Jobin, Baral, S., Deshmukh, Pranawa C., & Manson, Steven T. Relativistic and correlation effects in the photoionization dynamics of oganesson (Z = 118): Spin-orbit-interaction-activated interchannel coupling effects. United States. https://doi.org/10.1103/physreva.102.022813
Jose, Jobin, Baral, S., Deshmukh, Pranawa C., and Manson, Steven T. Fri . "Relativistic and correlation effects in the photoionization dynamics of oganesson (Z = 118): Spin-orbit-interaction-activated interchannel coupling effects". United States. https://doi.org/10.1103/physreva.102.022813. https://www.osti.gov/servlets/purl/1657218.
@article{osti_1657218,
title = {Relativistic and correlation effects in the photoionization dynamics of oganesson (Z = 118): Spin-orbit-interaction-activated interchannel coupling effects},
author = {Jose, Jobin and Baral, S. and Deshmukh, Pranawa C. and Manson, Steven T.},
abstractNote = {High-Z atoms are excellent laboratories to study the combination of relativistic and many-electron correlation effects in electronic structure and dynamics. In the present work, the relativistic-random-phase approximation at different levels of truncation is employed to explore the final-state correlation effects in the photoelectron dynamics of the heaviest known element in the Periodic Table: oganesson (Og) with Z = 118. Here, the focus of this work is to illustrate the relativistic effects resulting from coupling different photoionization channels arising from spin-orbit split subshells, termed the spin-orbit-interaction-activated interchannel coupling effect. Comparison with the photoelectron dynamics of Rn on a qualitative level is also carried out, since Og is a homologue of Rn. The photoelectron dynamics of 7p, 7s, and 6d subshells are investigated and differences between Og and Rn, due to enhanced relativistic effects, are investigated.},
doi = {10.1103/physreva.102.022813},
journal = {Physical Review A},
number = 2,
volume = 102,
place = {United States},
year = {Fri Aug 21 00:00:00 EDT 2020},
month = {Fri Aug 21 00:00:00 EDT 2020}
}

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