Large refrigerant capacity induced by table-like magnetocaloric effect in amorphous Er0.2Gd0.2Ho0.2Co0.2Cu0 .2 ribbons

作者：Li, Lingwei^*; Xu, Chi; Yuan, Ye; Zhou, Shengqiang

来源：Materials Research Letters, 2018, 6(8): 413-418.

DOI：10.1080/21663831.2018.1471749

• Table-like magnetocaloric effect
• Er0.2Gd0.2Ho0.2Co0.2Cu0.2 amorphous ribbons
• large refrigeration capacity

The microstructure, magnetism, and magnetocaloric properties in melt-spun Er0.2Gd0.2Ho0.2Co0.2 Cu-0.2 ribbons were reported. The ribbons are fully amorphousized and all the constituent elements are distributed uniformly. The large table-like magnetocaloric effect (MCE) from 25 to 75 K has been observed, resulting in a large value of refrigerant capacity (RC). With the magnetic field change (Delta mu H-0) of 0-5 T, the values of maximum magnetic entropy change (-Delta S-M(max)) reaches 11.1 J/kg K, and the corresponding value of RC are as large as 806 J/kg, make the amorphous Er0.2Gd0.2Ho0.2Co0.2Cu0.2 ribbons extremely attractive for cryogenic magnetic refrigeration.

• 出版日期2018
• 单位东北大学; 杭州电子科技大学