X-ray diffraction patterns for polycrystalline La0.7-x Pr x Sr0.3MnO3.
(a) Temperature dependences of magnetization under an external field of 5 mT for La0.7-x Pr x Sr0.3MnO3 and (b) determination of TC using the inflection point of .
Hysteresis loops of La0.7-x Pr x Sr0.3MnO3 recorded at 300 K.
Isothermal magnetization curves for (a) x = 0.02 and (b) x = 0.30 measured at various temperatures over an applied field range of 0–1.5 T. (c) and (d) show Arrott plot analyses for the same compositions.
Temperature dependences of −ΔS M under an applied field change of 1.5 T for La0.7-x Pr x Sr0.3MnO3.
Tolerance factor (t)/compositional (x) dependence of Curie temperature (TC) and maximum magnetic entropy change () for La0.7-x Pr x Sr0.3MnO3. The inset shows the same dependences for La0.7-x Pr x Ca0.3MnO3.31 Reproduced with permission from J. Appl. Phys. 110, 013906 (2011). Copyright 2011 American Institute of Physics.
Lattice parameters calculated from XRD scans for each composition.
The magnetic and magnetocaloric properties of La0.7- x Pr x Sr0. 3MnO3 for 0.02 ≤ x ≤ 0.30.
Comparison of the magnetocaloric parameters of La0.7- x Pr x Sr0. 3MnO3 with similar magnetic refrigerant materials.
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