Fig. 3: The inverse susceptibilities.
From: Large off-diagonal magnetoelectricity in a triangular Co2+-based collinear antiferromagnet

Red, blue, yellow, and green curves display the inverse magnetic susceptibility (1/χ) versus temperature parallel to c axis of a single crystal, perpendicular to c axis of a single crystal, and of a polycrystalline sample. The Curie-Weiss (CW) fitting is performed in the 200 K to 300 K range.