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Analysis of electronic properties of dense plasma-embedded highly charged ions using temperature-dependent ion sphere model

  • Regular Article – Atomic Physics
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Abstract

The total and orbital energies, dipole oscillator strength and Shannon entropy in position space are estimated for different energy levels of hydrogen- and helium-like Al and Cl ions embedded in a dense plasma medium mimicked by classical ion sphere (IS) model as well as by temperature-dependent analytic ion sphere (AIS) model. The associated Schrödinger and Hartree–Fock equations are solved by means of a numerical grid method. The results are compared with the literature values, wherever available, and found good agreement. The total energy reflects the ionization of the electron in the ground and excited states for one- and two-electron ions as the plasma density is gradually increased for a particular temperature. The nature of variation in dipole oscillator strength with the plasma parameters is a direct consequence of such ionization process. The Shannon entropy values in position space support the delocalization of the bound electron density with the increment of plasma density for fixed temperature. Contrast behavior is noted for the total energy and Shannon entropy with the increment of plasma temperature for fixed plasma density. It is a general finding that as the plasma electron temperature is sufficiently increased in the AIS model, we corroborated the excellent agreement with the results estimated using the IS model.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated or analyzed during this study are included in this published article].

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Acknowledgements

M.F.-C. thanks the support of DGAPA-UNAM for a postdoctoral fellowship.

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Authors and Affiliations

  1. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Circuito Exterior C.U., 04510, Mexico City, Mexico

    César Martínez-Flores

  2. Department of Physics, Aliah University, Newtown, Kolkata, 700160, India

    Jayanta K. Saha

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  1. César Martínez-Flores
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Correspondence to César Martínez-Flores.

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Martínez-Flores, C., Saha, J.K. Analysis of electronic properties of dense plasma-embedded highly charged ions using temperature-dependent ion sphere model. Eur. Phys. J. D 76, 224 (2022). https://doi.org/10.1140/epjd/s10053-022-00560-x

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