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DSC curve of a Gd53Al24Co20Zr3 amorphous microwire. The inset shows a side-view image of the microwires.
Temperature dependence of ZFC and FC magnetization taken at a field of 20 mT (a) for the bulk sample (for both “in-plane” and “out-of-plane” cases) and (b) for the microwires sample. The inset shows the magnetic hysteresis loop (M-H) of the microwires sample.
Isothermal magnetization curves taken at different fixed temperatures between 5 K and 300 K ((a) and (b)) for the bulk sample (the “in-plane” and “out-of-plane” cases, respectively) and (c) for the microwires sample. The H/M vs. M 2 plots for representative temperatures around the TC for the (d) “in-plane,” (e) “out-of-plane,” and (f) “microwire” cases, respectively.
Temperature dependence of magnetic entropy change (−ΔSM ) for different field changes up to 3 T (a) for the bulk sample (the “out-of-plane” case) and (b) for the microwires sample. Magnetic field dependences of maximum magnetic entropy change (Δ) (Fig. 4(c)) and RC (Fig. 4(d)) for all the “in-plane,” “out-of-plane,” and ‘microwire” cases.
Maximum entropy change, , peak temperature, T p, and RC, for the present samples and other magnetocaloric candidate materials (Bulk Glasses) in the temperature range of 10–100 K. Gd and Gd5Si2Ge1.9Fe0.1 are also included for reference.
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