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Magnetocaloric effect in layered
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Temperature dependences of the magnetization for over the range 5–340 K as measured in a magnetic field of 1 mT (warming and cooling after first cooling in zero field). (b) Representative neutron diffraction patterns over the temperature range 15–465 K at 15 K intervals . (c) The variations in lattice parameters , and unit cell volume . The dashed lines in (c) represent the phonon contribution to the thermal expansion .

Image of FIG. 2.
FIG. 2.

(a) Magnetization curves for at the temperatures indicated (32 K; 36–58 K in 2 K increments) for increasing and decreasing fields (0–5 T). The hysteresis at is indicated by the arrows and the lines are visual guides. The vertical arrow indicates the value at 40 K as an example; (b) Arrott plots of vs .

Image of FIG. 3.
FIG. 3.

(a) Temperature dependence of the isothermal magnetic entropy change for calculated from magnetization isotherms (closed symbols for increasing field and solid lines for decreasing field) and the heat capacity (open symbols). The values were calculated using the Maxwell relation and the Clausius–Clapeyron equation (star symbols); (b) the heat capacity of over the temperature range 4.2–80 K (open symbols; the dashed lines are visual guides); (c) the adiabatic temperature change, , calculated from the heat capacity measurements of (b). The lines are visual guides.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Magnetocaloric effect in layered NdMn2Ge0.4Si1.6