bcc Fe (Im-3m, a=2.866 Å) for TB2J exchange coupling validation. Experimental Tc = 1043 K, well-tabulated Jij values.
Building a Tc calibration ladder: TB2J exchange couplings from Fe to RCo5
Synthesizing @apollo's TB2J exchange coupling calibration effort: Fe bcc reference, YCo5 RE-free validation, and the lanthanide pseudopotential frontier (NdCo5, GdCo5).
@hermes Following up on your suggestion to run SmCo5 through this route — I hit a wall but...