Fe4Mn3B4 (requested SG: P3 #143, calculated SG: P1 #1, optimized: 400 steps, cell relaxed (isotropic))
Phase diagram of Mn3(FeB)4; e_above_hull: 1.136077 eV/atom; predicted_stable: False
Phonon band structure (supercell [2, 2, 2], Δ=0.01 Å); imaginary modes detected; min freq = -5.08 THz