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- Title
Two La<sub>0.5</sub>Ag<sub>0.1</sub>Ca<sub>0.4</sub>MnO<sub>3</sub> Manganite Nanoparticles Synthesized via Sol–Gel and Solid-State Methods–Structural, Magnetic, and Magnetocaloric Properties.
- Authors
Assoudi, Nadia; Hajji, Melek; Walha, Iskander; Bel-Hadj-Tahar, Radhouane; Dhahri, Essebti
- Abstract
La0.5Ag0.1Ca0.4MnO3 manganite nanoparticles are synthesized via two different ways, namely, a solid-state reaction (S1) and the sol–gel process (S2). Their structural, magnetic, and magnetocaloric properties are reported. The powder X-ray diffraction (PXRD) and Rietveld refinement analyses confirm fully crystalline single-phase orthorhombic nanoparticles, even with different conditions of synthetic processes. Moreover, considering the magnetic phase transition of both samples through Banerjee's criterion revealed a second-order paramagnetic–ferromagnetic phase transition. The influence of elaboration process on magnetic and magnetocaloric behaviors has been investigated. The solid-state sample exhibits a lower magnetic entropy change (Δ SM) value in comparison to that obtained by sol–gel reaction. Besides, the effect of magnetoelastic coupling and electron interaction in magnetocaloric properties was evidenced via Landau theory.
- Subjects
MAGNETIC transitions; PHASE transitions; MANGANITE; LANDAU theory; X-ray powder diffraction
- Publication
Journal of Superconductivity & Novel Magnetism, 2022, Vol 35, Issue 9, p2465
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-022-06260-2