Investigation of Magnetic Entropy Change in Intermetallic Compounds SmNi3−xFex Based on Maxwell Relation and Phenomenological Model

Autor: Hamdi Jaballah, Kamel Nouri, Najeh Mliki, Lotfi Bessais, Mosbah Jemmali

Publikováno v: Crystals, Vol 12, Iss 4, p 481 (2022)

In this study, we investigate the crystal structure, magnetic, and magnetocaloric effect properties in the intermetallic compounds SmNi3−xFex using a phenomenological model based on Landau mean-field theory and Maxwell relation (conventional method

Externí odkaz: https://doaj.org/article/0809cfeb1ee84150b6b5fa8274e60732

Magnetic, half-metallicity and electronic studies of Cd1-xZnxCr2Se4 chromium selenospinels

Autor: Friha Khelfaoui, M. Abid, M. Bouhbou, A. Belayachi, Reda Moubah, Najeh Mliki, H. Lassri, K. Bakkari, A. Sabrallah, H. Zaari

Publikováno v: Journal of Magnetism and Magnetic Materials. 476:86-91

We have studied the magnetism of crystalline Cd1-xZnxCr2Se4 spinels with (0.35 ≤ x ≤ 0.55) under magnetic field up to 15 T. The total magnetic moment, Curie temperature, lattice parameter and exchange integrals were found to decrease with Zn subs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::970733f7052e15f3ab35f961db1259fa
https://doi.org/10.1016/j.jmmm.2018.12.063

Crystal structure of nanocrystalline Pr5Co19 compound and its hydrogen storage properties

Autor: Loïc Patout, Najeh Mliki, Ahmed Charaï, Lotfi Bessais, W. Bouzidi

Publikováno v: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2020, 45 (19), pp.11190-11198. ⟨10.1016/j.ijhydene.2020.02.079⟩
International Journal of Hydrogen Energy, 2020, 45 (19), pp.11190-11198. ⟨10.1016/j.ijhydene.2020.02.079⟩

The present study focuses on the structure and pressure-composition (P–C) isotherm measurements of nanocrystalline Pr5Co19 hydrides. The crystal structure and hydrogenation properties of Pr5Co19 are investigated by X-ray diffraction, refined using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9dd632d33f20d74cacaf24ffe303c3d6
https://hal.archives-ouvertes.fr/hal-02860286

Study of exchange interaction, magnetization correlations and random magnetic anisotropy in nanocrystalline Pr2Co7 films deposited on Si substrate

Autor: A. Bezergheanu, R. Fersi, C.B. Cizmas, Lotfi Bessais, Najeh Mliki, Delia Patroi

Publikováno v: Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 494, pp.165816. ⟨10.1016/j.jmmm.2019.165816⟩

In this work, we studied the exchange interaction as a function of X thickness for nanocrystalline Pr2Co7 thin films prepared by electron beam evaporation on Si(1 0 0) substrate. A quantitative analysis of static ferromagnetic correlations was realiz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc1c712bcdc5f084b6de00f1a0f91d83
https://hal.archives-ouvertes.fr/hal-02860295

Effect of film thickness on magnetic properties of Co/SmCo bilayers

Autor: W. Belkacem, Najeh Mliki, Martiane Cabié, R. Belhi, Marwen Hannachi

Publikováno v: Physica B: Condensed Matter. 550:407-413

Au/Co/SmCo/Au films with different SmCo and Co thickness were grown on silicon (100) substrates by electron-beam evaporation. The morphology of these films has been analyzed by transmission electron microscopy. The magnetic properties of the bilayers

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd4d20cb5c83d0104213c559528e584d
https://doi.org/10.1016/j.physb.2018.09.032