Fig. 3

ZFC/FC curves of pristine ReS2 and N-doped ReS2 with different nitrogen doping concentrations. a FC curves of pristine ReS2 and ReN4.24 with the maximal saturated magnetization. The inset was their hysteresis loops at 2 K. b–d FC and ZFC curves between 0 K and 150 K at different N-doping levels, 2.20, 4.24, and 6.64 at.%, respectively. The insets showed the ZFC/FC curves in complete temperature range and their fitted data assuming the temperature from 0 K to 120 K, where Curie–Weiss law and Brillouin function were employed. The Néel point was around 57 K