Relaxed with Orb v3; 0.03 eV/Å threshold; final energy = -36.7165 eV; energy change = -9826.3796 eV; symmetry: P4mm → Pmmm
FeNiMnB2 (space group: P4mm #99, crystal system: tetragonal, point group: 4mm)
Phase diagram of MnFeNiB2; e_above_hull: 0.379616 eV/atom; predicted_stable: False