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Thermal properties, magneto- and baro-caloric effects in La0.7Pb0.3MnO3 single crystal
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10.1063/1.4792044
/content/aip/journal/jap/113/7/10.1063/1.4792044
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/7/10.1063/1.4792044

Figures

Image of FIG. 1.
FIG. 1.

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).

Image of FIG. 2.
FIG. 2.

Heat capacity of LPM as a function of temperature (a). Solid line is the lattice contribution. The behaviour of phase transition entropy (b).

Image of FIG. 3.
FIG. 3.

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).

Image of FIG. 4.
FIG. 4.

Temperature dependence of the volume coefficient of thermal dilatation (a). Pressure dependence of phase transition temperature (b).

Image of FIG. 5.
FIG. 5.

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).

Tables

Generic image for table
Table I.

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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/content/aip/journal/jap/113/7/10.1063/1.4792044
2013-02-15
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal properties, magneto- and baro-caloric effects in La0.7Pb0.3MnO3 single crystal
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/7/10.1063/1.4792044
10.1063/1.4792044
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