Large reversible magnetocaloric effect induced by metamagnetic transition in antiferromagnetic HoNiGa compound

Wang Yi-Xu¹, Zhang Hu^{1, †,}, Wu Mei-Ling¹, Tao Kun¹, Li Ya-Wei¹, Yan Tim², Long Ke-Wen², Long Teng¹, Pang Zheng¹, Long Yi¹

(a) Temperature dependences of magnetic entropy change −ΔS_M for HoNiGa compound under different magnetic field changes from 0.1 T to 1.8 T. The inset shows the −ΔS_M through value below T_N as a function of magnetic field change. (b) Temperature dependences of magnetic entropy change −ΔS_M for HoNiGa compound under different magnetic field changes increasing from 2 T to 5 T.