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Anomalous magnetoresistance and magnetocaloric properties of NdRu2Ge2
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Temperature variation of ZFC and FC magnetization of NdRu2Ge2 in 500 Oe. (b) Normalized electrical resistivity measured as a function of temperature in the presence of different magnetic fields. (c) Temperature dependence of magnetoresistance ( ) at 10 kOe and 30 kOe.

Image of FIG. 2.
FIG. 2.

(a) Magnetoresistance as a function of magnetic field (H) measured at some selected temperatures for NdRu2Ge2. (b) Magnetization (M) as a function of magnetic field (H) at some selected temperatures. Inset shows the derivative of the dM/dH vs. H at 15 K, indicating the occurrence of metamagnetic transition at HC  ∼ 4.4 kOe.

Image of FIG. 3.
FIG. 3.

Arrott plots of NdRu2Ge2 from 3 to 29 K with a temperature step of2 K. The inset shows low field Arrott plots in the temperature range of 11–17 K.

Image of FIG. 4.
FIG. 4.

Temperature variation of isothermal magnetic entropy change in NdRu2Ge2 in different fields.

Image of FIG. 5.
FIG. 5.

Temperature dependence of adiabatic temperature change for a field change of 50 kOe. Inset shows the temperature dependence of heat capacity (Cp) under the fields of 0 and 50 kOe.


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Scitation: Anomalous magnetoresistance and magnetocaloric properties of NdRu2Ge2