Figure 4
Temperature dependence of magnetic entropy change ΔSm(T) of (a) W1 and (b) W2 under different magnetic fields derived from the isothermal magnetization curves. The inset in (a) demonstrates the ΔSm(T) at 200 and 400 Oe of W1. The white double sided arrow in (a) indicates the full width at half maximum of W1. The orange arrow in (b) marks the tiny positive entropy peak.
