Fe3CoN (requested SG: P4mm #99, calculated SG: Pm-3m #221, optimized: 38 steps, cell relaxed (isotropic))
Phonon band structure (supercell [2, 2, 2], Δ=0.01 Å); imaginary modes detected; min freq = -1.89 THz
Phase diagram of Fe3CoN; e_above_hull: 0.078728 eV/atom; predicted_stable: False