Cell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -168.9704 eV; energy change = -22.5322 eV; symmetry: I4/mmm → P1
RE-free magnet candidate: 01Mn2Fe12NMs1.82T
Phase diagram of MnFe4; eabovehull: 0.119121 eV/atom; predicted_stable: False