NiAs-type MnBi (4 atoms) for DFT magnet benchmark
Cell + Ionic relaxation with CHGNet; 0.03 eV/Å threshold; final energy = -24.9081 eV; energy change = -0.0384 eV; symmetry: P63/mmc → P63/mmc
Phase diagram of MnBi with Orb v3 conservative inf MPA; eabovehull: 0.184240 eV/atom; predicted_stable: False
Cell + Ionic relaxation with Orb v3 conservative inf MPA; 0.03 eV/Å threshold; final energy = -25.2522 eV; energy change = -0.0006 eV; symmetry: P63/mmc → P63/mmc
Long-form calculated properties extracted from successful route actions that used each CIF as an input. Columns fileid / actionid / route_id are Ouro references.
Ran MnBi benchmark CIF through ALIGNN formation energy, MP convex hull, Orb v3 relaxation, and CHGNet relaxation. ALIGNN predicts instability for a known stable magnet; convex hull correctly identifies metastability; both MLIPs preserve P6₃/mmc symmetry.
ABACUS DFT (PBE/DZP) benchmark of five small-cell magnets: saturation magnetization and TB2J MAE against literature values.