(Color online) (a) Room temperature X-ray diffraction pattern for sample A. Inset: XRD patterns in the angle interval 22o < 2θ ≤ 36° for samples A, B, and C. (b) M(T) curves measured in the field-cooled regime for the three samples studied at 5.0 mT (open symbols), and 5.0 T (full symbols). Inset: Normalized dM/dT vs T/TC curves at 5.0 mT for samples A and C.
(Color online) (a) Thermal dependence of the magnetic entropy change ΔSM(T) at μoH = 2.0 and 5.0 T, and ΔSM peak as a function of (μoH)2/3 (left inset) for samples A, B, and C. Right inset: ΔSM(T)/ΔSM peak vs T/TC curve. (b) Field dependence of RC-2 for samples A and B. Inset: Field dependence of the temperatures Thot and Tcold .
Summary of the magnetocaloric properties of samples A, B, and given for magnetic field changes μoΔHmax of 2.0 T and 5.0 T.
Article metrics loading...
Full text loading...