Special Issue "Atomic Data for Ions of Rare Earth Elements"

A special issue of Atoms (ISSN 2218-2004).

Deadline for manuscript submissions: closed (31 January 2019)

Special Issue Editors

Guest Editor
Dr. Kanti M. Aggarwal

Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, Northern Ireland, UK
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Interests: theoretical atomic physics; calculations of energy levels, transition radiative rates, lifetimes, collision strengths, and excitation rates for a wide range of atomic systems; data evaluation and application for analysis of astrophysical plasmas
Guest Editor
Prof. Dr. Per Jönsson

School of Technology, Applied Mathematics Group, Malmö University, Sweden
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Special Issue Information

Dear Colleagues,

Elements of the lanthanide group (La to Lu with 57 <= Z <= 71), comprising of 'rare earth elements' (REE), and their ions have applications in a variety of fields, such as lighting industry, lasers, quantum and nano electronics, and plasma chemistry. Some of them also have applications in astrophysical and fusion plasmas, and spectra of their many ions have been measured, particularly of the lower ionisation stages. However, theoretical work on their ions is very limited but is getting momentum. This is because the calculations are very challenging as both the correlation and relativistic effects are important, and a single configuration may generate over a dozen closely spaced levels, arising from different LS symmetries, and there is a strong mixing of levels making the identifications difficult. Therefore, in this special issue we wish to focus on the ions of lanthanide elements, and invite the atomic physicists to contribute, theoretically or experimentally, to report data on energy levels, radiative rates, lifetimes, and electron impact excitation collision strengths. However, work on all other related atomic parameters and ions of Sc (Z = 21) and Y (Z = 39) will be equally welcome. A focus on these elements may provide good opportunity for the code developers to enhance the capabilities and efficiencies. Our aim is to cover a wide range of ionisation stages and to have as large a complete set of data as possible, but which can be confidently and reliably applied. In this regard the experimentalists can enormously contribute as the accuracy of the data generated can be tested and verified.

All contributed papers will undergo the standard peer reviewing process of the journal and will be published in a single issue towards the end of the year 2018. To make its publication feasible and to make the issue a source of reference for years to come, contributions are invited, through the journal website, latest by 30 September 2018. All submitted papers before this date, but well prepared which will not require extensive editorial corrections, will be free of Article Processing Charges (APC). Papers submitted after this date may not be included in the special issue but will continue to be processed for the regular issue/s of the journal.

Dr. Kanti M. Aggarwal
Prof. Dr. Per Jönsson
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atoms is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 550 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Atomic data
  • rare earth elements
  • energy levels
  • radiative rates
  • lifetimes
  • collision strengths

Published Papers (2 papers)

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Research

Open AccessArticle
Radiative Transition Parameters in Atomic Lanthanum from Pseudo-Relativistic Hartree–Fock and Fully Relativistic Dirac–Hartree–Fock Calculations
Received: 23 January 2019 / Revised: 14 March 2019 / Accepted: 16 March 2019 / Published: 20 March 2019
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Abstract
Calculated radiative transition probabilities and oscillator strengths are reported for 392 lines of neutral lanthanum (La I) atom in the spectral range from the near ultraviolet to the mid infrared. They were obtained using two different theoretical methods based on the pseudo-relativistic Hartree–Fock [...] Read more.
Calculated radiative transition probabilities and oscillator strengths are reported for 392 lines of neutral lanthanum (La I) atom in the spectral range from the near ultraviolet to the mid infrared. They were obtained using two different theoretical methods based on the pseudo-relativistic Hartree–Fock (HFR) and the fully relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) approaches, both including the most important intravalence and core-valence electron correlations. The quality of these radiative parameters was assessed through detailed comparisons between the results obtained using different physical models and between our theoretical results and the experimental data, where available. Of the total number of La I lines listed in the present work, about 60% have gf- and gA-values determined for the first time. Full article
(This article belongs to the Special Issue Atomic Data for Ions of Rare Earth Elements)
Figures

Figure 1

Open AccessFeature PaperArticle
Energy Levels and Radiative Rates for Transitions in F-like Sc XIII and Ne-like Sc XII and Y XXX
Received: 29 March 2018 / Revised: 23 April 2018 / Accepted: 25 April 2018 / Published: 3 May 2018
PDF Full-text (317 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Energy levels, radiative rates and lifetimes are reported for F-like Sc XIII and Ne-like Sc XII and Y XXX for which the general-purpose relativistic atomic structure package (GRASP) has been adopted. For all three ions, limited data exist in the literature but comparisons [...] Read more.
Energy levels, radiative rates and lifetimes are reported for F-like Sc XIII and Ne-like Sc XII and Y XXX for which the general-purpose relativistic atomic structure package (GRASP) has been adopted. For all three ions, limited data exist in the literature but comparisons have been made wherever possible to assess the accuracy of the calculations. In the present work, the lowest 102, 125 and 139 levels have been considered for the respective ions. Additionally, calculations have also been performed with the flexible atomic code (FAC) to (particularly) confirm the accuracy of energy levels. Full article
(This article belongs to the Special Issue Atomic Data for Ions of Rare Earth Elements)
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