BINGHAM , Nicholas S.

We report upon the excellent magnetocaloric properties of Gd53Al24Co20Zr3 amorphous microwires. In addition to obtaining the large magnetic entropy change (-DSM rv 10.3 J/kg K at TC rv 95 K), an extremely large value of refrigerant capacity (RC rv 733.4 J/kg) has been achieved for a field change of 5 T in an array of forty microwires arranged...

We have studied the impact of structural disorder on the magnetic ordering and magnetocaloric response of amorphous Gd 68 Ni 32 and Gd 53 Al 24 Co 20 Zr 3 microwires. We find that the presence of structural disorder significantly broadens the paramagnetic to ferromagnetic (PM-FM) transition and the temperature-dependent magnetic entropy change,...