Effect of iron substitution on the physico-chemical properties of Pr0.6La0.1Ba0.3Mn1−xFexO3 manganites (with 0 ≤ x ≤0.3

Regular Article

Abstract

We report in this paper the physico-chemical properties of Pr0.6La0.1Ba0.3Mn1−x Fe x O3 (with 0 ≤ x ≤ 0.3 compounds. Our manganites were prepared using the sol-gel method. Structural studies showed that our compounds are single-phase ones and they crystallize in the orthorhombic system with the Pnma space group. The substitution of Mn by Fe induces a ferromagnetic phase at low temperatures. From isothermal magnetization versus magnetic applied field we deduced the magnetic entropy change. The maximum value |ΔS M Max | of our parent compound reached 1.43 J/kg · K and 2.92 J/kg · K under magnetic field of 2 and 5T, respectively. Our results suggest that these materials may be suitable candidates in magnetic refrigeration at low temperature.

Keywords

Curie Temperature Manganite Magnetic Transition Orthorhombic Structure Double Exchange 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • S. Zouari
    • 1
  • M. L. Kahn
    • 2
  • M. Ellouze
    • 1
  • F. Elhalouani
    • 3
  1. 1.Faculty of Sciences of SfaxUniversity of SfaxSfaxTunisia
  2. 2.Laboratory of Chemical of Coordination (LCC) of CNRSUniversity Paul SabatierToulouse, Cedex 4France
  3. 3.University of SfaxNational Engineering School of SfaxSfaxTunisia

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