Outstanding Magneto-Caloric Effect of a Gd_(60)Ni_(37)Co_3 Amorphous Alloy

• 作 者: 马雁飞 唐本镇 夏雷 丁鼎
• 机 构: Laboratory for Microstructure,Institute of Materials,Shanghai University,
• 出 处: Chinese Physics Letters
• 发表日期: 2016年12期
• 关键词: amorphous magneto ribbon metallic Curie magnetization coercivity heating crystal

Outstanding magneto-caloric properties of a Gd_(60)Ni_(37)Co_3 amorphous alloy are reported.The magnetic entropy change peak(—ΔS_m~(peak) near the Curie temperature(T_c = 135 K) of the amorphous alloy under 5T is about10.42 J·kg~(-1)K~(-1) and the refrigeration capacity(RC) under 5 T is about 860J·kg~(-1),both of which are almost the highest among the amorphous alloys with T_c above 100 K.The magneto-caloric behaviors and the mechanism for the rather high magneto-caloric effect of the Gd_(60)Ni_(37)Co_3 metallic glass are investigated.

Outstanding magneto-caloric properties of a Gd_ (60) Ni_ (37) Co_3 amorphous alloys are reported. The magnetic entropy change peak (-ΔS_m ~ (peak) near the Curie temperature (T_c = 135 K) of the amorphous alloys under 5T is about10.42 J · kg -1 K -1 and the refrigeration capacity (RC) under 5 T is about 860 J · kg -1, both of which are almost the highest among the amorphous alloys with T_c above 100 K. The magneto-caloric behaviors and the mechanism for the rather high magneto-caloric effect of the Gd_ (60) Ni_ (37) Co_3 metallic glass are investigated.