Comparative study on the effect of synthesis route on the structural, magnetic, and magnetocaloric properties of La0.5Ca0.5Mn0.95V0.05O3 manganite. (4th March 2022)

• Record Type: Journal Article
• Authors: Mansouri, Moufida; Messaoudi, Olfa; Dhahri, Khaled; Alfhaid, Latifah
• Is Part Of: Phase transitions. Volume 95:Number 3(2022)
• Page Start: 212
• Page End: 224
• Publication Date: 2022-03-04
• Subjects: Magnetocaloric effect -- Manganites -- Glycine nitrate process -- Synthesis method -- Structural analysis -- Magnetic properties; Phase transformations (Statistical physics) -- Periodicals; 530.47405
• DOI: 10.1080/01411594.2022.2039391
• Languages: English
• ISSNs: 0141-1594

Abstract

ABSTRACT: The influence of the synthesis method on structural, magnetic and magnetocaloric properties of the La0.5 Ca0.5 Mn0.95 V0.05 O3 compound has been investigated. The compound was prepared by glycine nitrate process (GNP) and compared to counterparts obtained with solid-state route (S-S) and ball milling (B-M). The structural analysis shows a pure and single-orthorhombic crystalline phase for the GNP compound. A secondary phase LaVO4 was detected for S-S and B-M samples. From magnetization versus temperature analysis, different magnetic behaviors were distinguished when moving from one technique to another. The nature of transition was determined and a crossover from second order to first-order magnetic transition was observed with the decrease of crystallite size. Landau theory was performed to confirm the order of magnetic transition of the sample consistent with the Banerjee criterion. The magnetic entropy change (ΔSm ) and the relative cooling power RCP, which decreased by reducing the particle size, were calculated.