Figure 2

Differential scanning calorimetry (DSC) plots of the annealed Ni_47−xMn₄₃Sn₁₀Co_x (x = 0, 6, 11) alloys at heating and cooling rates of 10 K/min. (a) Co0, (b) Co6 and (c) Co11. Insets in (b) and (c) are enlarged images showing the magnetic transitions around the Curie point.