Theoretical Study of Excitation Energies, Radiative Data for E1 Transitions With Partition Function and Thermodynamic Parameters for Li-Like Ions

Authors

  • Pradumn Kumar Hindu College, University of Delhi
  • Arun Goyal Department of Physics and Astrophysics, University of Delhi, Delhi 110007

DOI:

https://doi.org/10.26713/jamcnp.v10i1.1945

Keywords:

Excitation energies, radiative data, partition function, thermodynamic parameters

Abstract

The fully relativistic Multi-configuration Dirac-Fock (MCDF) method within the framework of the Dirac-Coulomb Hamiltonian is employed to calculate the excitation energies and radiative rates for Li-like ions (21≤Z≤56), which includes quantum electrodynamics and Breit Corrections. We have presented energies of lowest 24 fine structural levels and radiative data for electric dipole (E1) transitions among these levels. The results have been benchmarked for a few ionic states. Comparisons are made with results compiled by NIST as well as with other results available in the Literature.  We have performed analogous calculations for energy levels with the distorted wave (DW) method, in order to assess the accuracy of our results. Further, we have calculated partition functions and thermodynamic properties by using fine structure approach. We have discussed the variation of partition function, internal energy and specific heat with temperature. We strongly believe that our extensive calculations can guide experimentalists in identifying the fine-structural levels in their future works.

Downloads

Download data is not yet available.

Author Biography

Pradumn Kumar, Hindu College, University of Delhi

Physics Department

Published

2025-01-01
CITATION

How to Cite

Kumar, P., & Goyal, A. (2025). Theoretical Study of Excitation Energies, Radiative Data for E1 Transitions With Partition Function and Thermodynamic Parameters for Li-Like Ions. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 10(1), 9–37. https://doi.org/10.26713/jamcnp.v10i1.1945

Issue

Vol. 10 No. 1 (2023)

Section

Research Article

License

Authors who publish with this journal agree to the following terms:
  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a CCAL that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.