Reference : Effect of Ag substitution on structural, magnetic and magnetocaloric properties of Pr...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Engineering, computing & technology : Electrical & electronics engineering
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/235317
Effect of Ag substitution on structural, magnetic and magnetocaloric properties of Pr0.6Sr0.4– xAgxMnO3 manganites
English
Thaljaoui, Rachid [SUPRATECS, Department of Electrical Engineering and Computer Science (B28), University of Liege, Belgium, Department of Chemistry, University of Warsaw, Al. Zwirki i Wigury 101, Poland, Faculty of Physics, Warsaw University of Technology, Koszykowa 75, Warsaw, Poland]
Pękała, Marek [Department of Chemistry, University of Warsaw, Al. Zwirki i Wigury 101, Poland]
Fagnard, Jean-François [Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE) >]
Vanderbemden, Philippe mailto [Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
2017
Journal of Rare Earths
Chinese Society of Rare Earths
35
9
875-882
Yes (verified by ORBi)
International
1002-0721
[en] SEM ; XRD ; ZFC and FC curves ; Cooling ; Entropy ; Lanthanum compounds ; Magnetic fields ; Magnetocaloric effects ; Manganites ; Meteorology ; Rietveld refinement ; Scanning electron microscopy ; Silver ; X ray diffraction ; Critical exponent ; Doped manganites ; Relative cooling power ; Universal curve ; Magnetism
[en] A systematic investigation on the structural, magnetic and magnetocaloric properties of Pr0.6Sr0.4–xAgxMnO3 (x=0.05 and 0.1) manganites was reported. Rietveld refinements of the X-ray diffraction patterns confirmed that all samples were single phase and crystallized in the orthorhombic structure with Pnma space group. Magnetic measurements in a magnetic applied field of 0.01 T revealed that the ferromagnetic-paramagnetic transition temperature TC decreased from about 293 to 290 K with increasing silver content from x=0.05 to 0.1. The reported magnetocaloric entropy change and relative cooling power for both samples were considerably remarkable with a ΔSmax value of 1.9 J/(kg·K) and maximum RCP values of 100 J/kg, under a magnetic field change (Δµ0H) equal to 1.8 T. The analysis of the universal curves gave an evidence of a second order magnetic transition for the studied samples. The magnetic field influence on both the magnetic entropy change and the relative cooling power was also studied and discussed. © 2017 The Chinese Society of Rare Earths
Services Universitaires Pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - SUPRATECS
Wallonie-Bruxelles International - WBI
Researchers ; Professionals
http://hdl.handle.net/2268/235317
10.1016/S1002-0721(17)60989-X
https://www.sciencedirect.com/science/article/pii/S100207211760989X

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