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Room-temperature magnetocaloric effect in
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10.1063/1.2840121
/content/aip/journal/jap/103/4/10.1063/1.2840121
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/4/10.1063/1.2840121

Figures

Image of FIG. 1.
FIG. 1.

Field-cooled curves for the samples measured in . The inset shows derivative curves of the parent compound, , in , 2, and 6 T.

Image of FIG. 2.
FIG. 2.

Magnetic field dependence of the heat capacity of measured at different temperatures in the FM-PM phase transition region.

Image of FIG. 3.
FIG. 3.

MCE of the sample measured with varied from 1 to 6 T. The effect is largest at . Left axis: magnetic entropy change (lines), right axis: adiabatic temperature change (symbols).

Image of FIG. 4.
FIG. 4.

MCE of the sample with varied from 1 to 6 T. The sample has . Left axis: magnetic entropy change (lines), right axis: adiabatic temperature change (symbols).

Image of FIG. 5.
FIG. 5.

MCE of the sample with varied from 1 to 6 T. The sample has . Left axis: magnetic entropy change (lines), right axis: adiabatic temperature change (symbols).

Image of FIG. 6.
FIG. 6.

MCE of the sample with varied from 1 to 6 T. The sample has . Left axis: magnetic entropy change (lines), right axis: adiabatic temperature change (symbols).

Image of FIG. 7.
FIG. 7.

Arrott’s plots for one formula unit of in the transition region. The bold curve represents the measurement at 364 K, close to . The dashed lines, which present extrapolations of the high-field linear portion of the 364 and 366 K curves to zero field both intersect the -axis at , indicating the existence of a field-induced ferromagnetism in the transition region.

Tables

Generic image for table
Table I.

MCE parameters of the (, 0.05, and 0.1 for and for ) samples with and 6 T. is determined from the curves measured in .

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/content/aip/journal/jap/103/4/10.1063/1.2840121
2008-02-25
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Room-temperature magnetocaloric effect in La0.7Sr0.3Mn1−xMx′O3(M′=Al,Ti)
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/4/10.1063/1.2840121
10.1063/1.2840121
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