Extended Data Fig. 6: Susceptibility measurements of R₂ReN₄.

Susceptibility measurements of R₂ReN₄ in fields of 3 T for a Pr₂ReN₄ and 0.1 T for b Nd₂ReN₄. Curie-Weiss fits yielded for Pr: µ_eff = 3.68(1) µ_B/Pr³⁺ and Θ = −25.9(3) K, for Nd: µ_eff = 3.65(1) µ_B / Nd³⁺ and Θ = 4.0(9) K.