The La0.6Pr0.1Sr0.3Mn1−xFexO3 (0 ≤ x ≤ 0.3) polycrystalline samples were prepared by solid state reaction method.
Crystalline and magnetic structures were investigated using DRX and magnetization measurements.
Magnetocaloric (MC) effect were estimated versus magnetic field and temperatures.
Compounds with x=0, 0.1 exhibit great potential for magnetic refrigeration at room temperature.
The La0.6Pr0.1Sr0.3Mn1−xFexO3 (x =0, 0.1, 0.2 and 0.3) samples have been elaborated by the solid-state reaction method. X-ray powder diffraction shows that all the samples crystallize in rhombohedric phase with space group. The variation of magnetization as a function of temperature and applied magnetic field were carried out. The samples for x =0 and 0.1 exhibit a FM-PM transition at the Curie temperature TC, however, for x =0.2 and 0.3 exhibit an AFM-PM one at the Neel temperature TN, when the temperature increases. Magneto-caloric effect has been calculated in terms of isothermal magnetic entropy change. A large magneto-caloric effect has been observed, the maximum entropy change, , reaches the highest value of 3.28 J/kgK under a magnetic field change of 5 T with an RCP value of 220 J/kg for La0.6Pr0.1Sr0.3MnO3 composition, which will be an interesting compound for application materials working as magnetic refrigerants near room temperature.