“…Amorphous magnetocaloric alloys, as an important category of magnetic refrigerant, show potential applications from the perspective of magnetic refrigerators because they possess a rather broad “hillside” of magnetic entropy change (−Δ S m ) and a low but adequate maximum −Δ S m (−Δ S m peak ), which results in an ultrahigh refrigeration capacity ( RC ) [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. This makes it possible to design and manufacture metallic glass composites with a flattened −Δ S m peak within a tailorable temperature span because magnetic refrigerant with a flattened −Δ S m peak within the cold end and the hot end of a refrigerator is expected to be optimal in an Ericsson cycle [ 6 , 7 , 8 , 9 ].…”