Temperature dependence of the dc magnetization (M) for Pr0.6−xSr0.4+xMnO3 (x = 0.00, 0.02, and 0.04) for 0.1 T while cooling and warming. The inset (a) shows M(H) at 10 K for x = 0.00, 0.02, and 0.04.
(a) Temperature dependence of the dc magnetization (M) for Pr0.58Sr0.42MnO3 under different magnetic fields. TS denotes the structural transition temperature. (b) Magnetization isotherms for T = 50-350 K.
(a) The magnetic entropy change (−ΔSm ) as a function of temperature T for different H. The inset shows the refrigeration capacity, RC (left scale), and peak values of -ΔSMax (right scale) as a function of applied field. (b) Scaling of normalized ΔSm/ΔSMax ( ) versus reduced temperature θ = (T − Tp )/(Tr − Tp ) curves for different magnetic fields. The inset shows the temperature dependence of the exponent (n) in the power law dependence ΔSm (H) = Hn .
(a) Resistivity (ρ) versus magnetic entropy change (−ΔSm ) at selected temperatures extracted from their field dependence. (b) Magnetoresistance (−Δρ/ρ) versus magnetic entropy change (ΔSm ) for T > TC and (c) T < TC .
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