Extended Data Fig. 6: Extraction of the Curie temperature using an Arrott plot.
From: Topological bands and correlated states in helical trilayer graphene

\({R}_{yx}^{2}\) versus ∣B/Ryx∣. Positive (negative) extrapolated intercept of the linear part at high B indicates a ferromagnetic (paramagnetic) state. The curve taken at T = 10.5 K has approximately zero intercept, indicating a Curie temperature TC ≈ 10.5 K.