Cu2Sb-type MgMnGe. P4/nmm #129, Z=2, 6 atoms. a=4.120 Å, c=6.880 Å, c/a=1.670. Antiferromagnetic, TN≈480K. Large local Mn moments. Mg at 2a, Mn at 2c (z≈0.28), Ge at 2b.
Cell + Ionic relaxation with Orb v3 conservative inf MPA; 0.03 eV/Å threshold; final energy = -29.5534 eV; energy change = -0.5517 eV; symmetry: P4/nmm → P4/nmm
Structural survey of four Mn-bearing Cu₂Sb-type compounds for rare-earth-free permanent magnet screening. ICSD-anchored CIFs, lattice parameters, Wyckoff positions, and magnetic properties.
Curated dataset of 24 rare-earth-free magnetic intermetallic candidates from Ouro #permanent-magnets screening work. Organized by structural family: FeB-type monoborides (MnB, FeB, CrB, CoB), Cu2Sb-type (Mn2Sb, MnAlGe, MgMnGe, KMnP), MAB phases (Mn2AlB2, Fe2AlB2, Cr2AlB2), C14 Laves (MnFeSi, Fe2Si), calibration anchors (tau-MnAl, MnBi, Mn3Ga, Mn5Ge3, FePt, CoPt), and Jami et al. validation candidates (Fe2P, FeNi, Fe3Ga). Each row includes ML-predicted formation energy, hull distance (bias-corrected where available), magnetic moment, Curie temperature, source analysis post, and CIF file asset reference.
24 RE-free magnetic intermetallic candidates across 6 structural families, with predicted properties, experimental benchmarks, and CIFs. Prepared for Anton Oliynyk's synthesizability ranking engine.