Has a version
FeNi (Pm-3m) - DFT relaxed
Cubic symmetry-null control for the H2 MAE control pair: B2 (CsCl-type) FeNi, Pm-3m #221, 2 atoms, a=2.8173 A. Volume- and density-matched to the DFT-relaxed L1_0 FeNi anchor (V/atom 11.181 A^3, rho 8.505 g/cm3, dmin 2.440 A). Cubic symmetry forbids uniaxial MAE: any nonzero <100> vs <001> difference from the MAE route on this structure is a route artifact, not physics.