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Theoretical investigation on the existence of inverse and direct magnetocaloric effect in perovskite EuZrO3
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10.1063/1.3582144
/content/aip/journal/jap/109/8/10.1063/1.3582144
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3582144
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic representation of the G-type antiferromagnetic crystal structure for EuZrO3, where the numbers localize the four different magnetic sites.

Image of FIG. 2.
FIG. 2.

Magnetization vs temperature in EuZrO3 for applied magnetic fields B = 0.005, 0.01, and 0.02 T, using the mean field (solid curves) and Monte Carlo (open symbols) approaches.

Image of FIG. 3.
FIG. 3.

Magnetic susceptibility vs temperature in EuZrO3 at B = 0.005 T. Experimental data (circles), Monte Carlo simulation (triangles), and mean field calculation (solid curve). The inset shows the total heat capacity vs temperature from the Monte Carlo simulation, under B = 0, 1, and 2 T.

Image of FIG. 4.
FIG. 4.

(a) Magnetization vs applied magnetic field in EuZrO3 at T = 2 K. Experimental data (full circles), mean field calculation (solid curve), and Monte Carlo simulation (open triangles). (b) Magnetization vs applied magnetic field in EuZrO3 for several temperatures. Full symbols are for mean field (MF) and open symbols are for Monte Carlo (MC).

Image of FIG. 5.
FIG. 5.

vs temperature in EuZrO3 for magnetic field changes from 0 to 1 T and from 0 to 2 T. Mean field calculation (full symbols) and Monte Carlo simulation (open symbols).

Image of FIG. 6.
FIG. 6.

Total entropy vs temperature in EuZrO3 for magnetic fields B = 0 and 2 T (inset). Adiabatic temperature changes, , upon magnetic field change from 0 to 2 T. Mean field calculation (solid lines) and Monte Carlo simulation (symbols).

Image of FIG. 7.
FIG. 7.

Total entropy vs temperature in EuZrO3 for magnetic fields B = 0 and 1 T (inset). Adiabatic temperature changes, , upon magnetic field change from 0 to 1 T. Mean field calculation (solid curves) and Monte Carlo simulation (symbols).

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/content/aip/journal/jap/109/8/10.1063/1.3582144
2011-04-29
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Theoretical investigation on the existence of inverse and direct magnetocaloric effect in perovskite EuZrO3
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/8/10.1063/1.3582144
10.1063/1.3582144
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