Abstract
Investigation of the magnetic ground state and magnetocaloric properties of the polycrystalline Pr0.65(Ca0.80Sr0.20)0.35 MnO3 compound has been carried out in detail. In addition to the charge-orbital ordering and antiferromagnetic ordering transition, a weak ferromagnetic (FM) phase has been recognized from its temperature dependence of magnetization as well as from the change of magnetic entropies. The influence of such ferromagnetic phase on magnetocaloric effect have been examined properly in the presence of different magnetic fields. Moreover, a magnetic phase diagram, derived from the magnetic isotherms and magnetocaloric effect has been constructed to understand evolution of the weak ferromagnetic phase with external magnetic field at low temperature region.
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