[G] 磁気機能材料

[33] Tuning magnetocaloric effect of Ho1-xGdxNi2 and HoNi2-yCoy alloys around hydrogen liquefaction temperature

*Jiawei LAI¹, Sepehri-Amin H.¹, Xin Tang¹, Hono K.¹ (1. National Institute of Materials Science (NIMS))

キーワード：Table-like magnetocaloric effect、HoNi2 alloys、Curie temperature、Hydrogen liquefaction

A giant |ΔSM| of 22.0 J/kgK is obtained at 21 K by Gd substitution and table-like |ΔSM| of 16.8 J/kgK for the Ho0.7Gd0.3Ni2 alloy makes it suitable for magnetic frigeration with an Ericsson cycle.