[G] 磁気機能材料

[291] Tuning Transition Temperature of Magnetocaloric Mn_1.8Fe_0.2(P_0.59Si_0.41)_x Alloys for Cryogenic Magnetic Refrigeration

*Lai Jiawei¹, Sepehri-Amin H.¹, Tang Xin¹, Hono K.¹ (1. Research Center for Magnetic and Spintronic Materials, National Institute of Materials Science)

キーワード：Magnetocaloric Effect、Mn-Fe-P-Si、Cryogenic temperatures、Microstructure

A giant magnetic entropy change of 10.6 and 14.0 J/kgK at 2.0 and 5.0 T was obtained at 117.0 K in Mn-Fe-P-Si alloys, which is competitive to some heavy-rare-earth-based alloys.