The study of the magnetic and room-temperature magnetocaloric properties in spin-reorientation Nd1−xDyxCo4Al (x = 0, 0.1) alloys

The spin-reorientation and magnetocaloric property in Nd1−xDyxCo4Al (x = 0, 0.1) alloys are investigated. These alloys undergo two successive spin-reorientation transitions around room-temperature, which results in a positive and negative magnetic entropy change, respectively. With the increasing applied field (<30 kOe), these spin-reorientation alloys show wide working temperature interval and relatively large values of refrigerant capacity. The spin-reorientation material would be a promising candidate for room-temperature magnetic refrigerant.