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Effect of Ag substitution on structural, magnetic and magnetocaloric properties of Pr0.6Sr0.4– xAgxMnO3 manganites

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  • معلومة اضافية
    • Contributors:
      SUPRATECS - Services Universitaires pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - ULiège
    • بيانات النشر:
      Chinese Society of Rare Earths, 2017.
    • الموضوع:
      2017
    • نبذة مختصرة :
      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
    • Relation:
      https://www.sciencedirect.com/science/article/pii/S100207211760989X; urn:issn:1002-0721
    • الرقم المعرف:
      10.1016/S1002-0721(17)60989-X
    • Rights:
      open access
      http://purl.org/coar/access_right/c_abf2
      info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsorb.235317