Experimental temperature profile dependence of La0.7Pb0.3MnO3 sample on the magnetic field change: 0.0 kOe (1), 1.1 kOe (2), 2.1 kOe (3), 3.2 kOe (4), 4.1 kOe (5), 4.8 kOe (6), 5.4 kOe (7).
Heat capacity of LPM as a function of temperature (a). Solid line is the lattice contribution. The behaviour of phase transition entropy (b).
Temperature dependence of the intensive MCE for constant fields (a). Values of ΔTMCE AD at the peak position plotted as a function of field for different temperatures (b).
Temperature dependence of the volume coefficient of thermal dilatation (a). Pressure dependence of phase transition temperature (b).
Temperature dependence of the intensive BCE for constant pressure (a). Values of ΔTBCE AD at the peak position plotted as a function of pressure for different temperatures (b).
Some caloric parameters for La0.7Pb0.3MnO3 and some related manganites. Phase transition temperature (T0, K); specific maximum values of (ΔTMCE AD)MAX/ΔH (K/kOe); ΔSMCE MAX/ΔH (J/(kg·K·kOe)) and (ΔTBCE AD)MAX/Δp (K/kbar); ΔSBCE MAX/ΔH (J/(kg·K·kbar)); normalised relative cooling power based on the adiabatic temperature change (RCP(T)/ΔH, K2/kOe and RCP(T)/Δp, K2/kbar) and on the isothermal entropy change (RCP(S)/ΔH, J/kg·kOe and RCP(S)/Δp, J/kg·kbar).
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