Abstract
The extraordinary magnetocaloric effect of Fe80P13C7 bulk glassy rods has been studied. The magnetic entropy change (ΔSM) and refrigerant capacity (RC) values under 1.5 T can reach 2.20 J kg−1 K−1 and 125 J kg−1, respectively, which are the largest values among present ternary Fe-based glassy alloys. It is found that the magnetocaloric effect vs temperature curve gradually changes into two peaks with increasing magnetic fields, leading to a much wider ΔSM peak and thus a larger RC. This extraordinary magnetocaloric effect in Fe80P13C7 may be attributed to the coexistence of magnetic transition and spin reorientation transition.
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