Relaxed with Orb v3; 0.03 eV/Å threshold; final energy = -75.3464 eV; energy change = -1.7055 eV; symmetry: P4/mmm → P4/mmm
MnFe8Bi (space group: P4/mmm #123, crystal system: tetragonal, point group: 4/mmm)
Phase diagram of MnFe8Bi; e_above_hull: 0.511051 eV/atom; predicted_stable: False
Phonon band structure (supercell [2, 2, 2], Δ=0.01 Å); imaginary modes detected; min freq = -5.25 THz