Quantum mechanical line widths of ionized oxygen, silicon, and aluminium; comparisons with recent experimental results

Autor: Haykel ELABIDI, Sylvie SAHAL-BRÉCHOT, Rafik Hamdi, Walid Belhadj, Milan Dimitrijevic

Publikováno v: Monthly Notices of the Royal Astronomical Society. 521:2030-2049

We present in this paper new quantum Half Widths at Half intensity Maximum (HWHM) for 101 spectral lines of the following ions: O II (35 lines), O III (20 lines), Si II (9 lines), Si III (12 lines), and Al III (25 lines). The present quantum results

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0075c34bb1a766492fc2d4d3605fa58f
https://doi.org/10.1093/mnras/stad656

Stark broadening of Fe V spectral lines: 4s–4p transitions

Autor: Milan S. Dimitrijević, Sylvie Sahal-Bréchot, Rafik Hamdi, Nabil Ben Nessib

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 504 (1), pp.1320-1330. ⟨10.1093/mnras/stab917⟩

Using the impact semiclassical perturbation approach, widths and shifts of the 4s–4p configuration of Fe V spectral line profiles due to collisions with electrons, H+, He+, and He2 + ions, have been calculated in the physical conditions of hot whit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1499b3466d4f7f0c3c83419c929359e5
https://doi.org/10.1093/mnras/stab917

Impact of Titanium Doping on Structural, Magnetic, and Magnetocaloric Properties and Order of Transition in La0.5Pr0.3Ba0.2Mn1-xTixO3 (x = 0.0 and 0.1) Manganite

Autor: E. Dhahri, I. Walha, Rafik Hamdi, J. Khelifi, E.K. Hlil

Publikováno v: Journal of Superconductivity and Novel Magnetism
Journal of Superconductivity and Novel Magnetism, Springer Verlag, 2019, ⟨10.1007/s10948-019-5142-0⟩

In this paper, we study the structural, magnetic, and magnetocaloric properties of the polycrystalline peroviskite manganites La0.5Pr0.3Ba0.2Mn1-xTixO3 with x = 0 and 0.1. Our samples were prepared by solid-state reaction method. The XRD study has be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f74c1725f1c9b67e4a3a0a622f7544e
https://doi.org/10.1007/s10948-019-5142-0

On the semiclassical perturbation Stark shifts of Ar II spectral lines

Autor: N. Ben Nessib, Rafik Hamdi, Milan S. Dimitrijević, Sylvie Sahal-Bréchot

Publikováno v: Contributions of the Astronomical Observatory Skalnaté Pleso
Contributions of the Astronomical Observatory Skalnaté Pleso, Tatranská Lomnica : Astronomický ústav SAV, 2020, 50 (1), ⟨10.31577/caosp.2020.50.1.128⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c6f8db9f9f85e8498f0e361c58ab079
https://doi.org/10.31577/caosp.2020.50.1.128

Influence of Ag Substitution on Structural, Critical Behavior and Magnetocaloric Characteristics in La0.5Ca0.5−x Ag x MnO3 (0 ≤ x ≤ 0.1) Systems

Autor: M. Smari, Rafik Hamdi, E. Dhahri

Publikováno v: Journal of Superconductivity and Novel Magnetism. 31:173-181

Based on the modified Arrott plots and the critical isotherm analysis, the critical exponents of both La0.5Ca0.5MnO3 and La0.5Ca0.4Ag0.1MnO3 systems have been comprehensively studied and investigated near the paramagnetic-ferromagnetic (PM-FM) phase

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bf1fa39db03b7edf5862e3189864dae
https://doi.org/10.1007/s10948-017-4183-5