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Giant low field magnetocaloric effect in soft ferromagnetic ErRuSi
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Image of FIG. 1.
FIG. 1.

Powder x-ray diffraction pattern, collected at room temperature, along with the Rietveld refinement for ErRuSi. The bottom plot shows the difference between the observed and calculated patterns.

Image of FIG. 2.
FIG. 2.

Temperature dependence of dc magnetic susceptibility (left-hand scale) and inverse magnetic susceptibility (right-hand scale) of ErRuSi obtained in a field of 500 Oe. The solid line to inverse susceptibility shows the Curie-Weiss fit. The inset shows the temperature dependence of the heat capacity.

Image of FIG. 3.
FIG. 3.

Temperature dependence of ACS of ErRuSi at various frequencies (f = 25–625 Hz) and constant ac field (Hac = 1 Oe) of ErRuSi compound.

Image of FIG. 4.
FIG. 4.

Field dependence of magnetization of ErRuSi at different temperatures.

Image of FIG. 5.
FIG. 5.

The Arrott plots of ErRuSi at some selected temperatures. Inset shows the data in the expanded scale.

Image of FIG. 6.
FIG. 6.

Isothermal magnetic entropy change (ΔSM) of ErRuSi as a function of temperature at different field changes (in steps of 10 kOe). The inset shows the field dependence of RC.


Generic image for table
Table I.

The transition temperatures along with − and RC values under ΔH = 50 kOe for different giant magnetocaloric materials including ErRuSi (this work).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Giant low field magnetocaloric effect in soft ferromagnetic ErRuSi