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

Magnetization isotherms of HoNiGa compound in the temperature regions of (a) 2 K–8 K and (b) 10 K–60 K, respectively. The inset of Fig. 3(a) shows the magnetization isotherms under relatively low magnetic fields. The Arrott plots of HoNiGa compound are in the temperature regions of (c) 2 K–8 K and (d) 10 K–18 K, respectively.