Cu2Sb-type MnAlGe. P4/nmm #129, Z=2, 6 atoms. a=3.915 Å, c=5.840 Å, c/a=1.492. Ferromagnetic, Tc≈505K, ~1.5 μB/Mn. Strong uniaxial anisotropy. Mn at 2a, Al at 2c (z≈0.25), Ge at 2b.
MnAlGe (P4/nmm) - DFT relaxed
.cifCell + ionic relaxation with ABACUS DFT; 0.04 eV/Ã… threshold; final energy = -10909.2149 eV; energy change = -2.0391 eV
MnAlGe phase diagram 1
.htmlPhase diagram of MnAlGe with Orb v3 conservative inf MPA; eabovehull: 0.648383 eV/atom; predicted_stable: False
MnAlGe ICSD-anchored CIF (P4/nmm, a=3.915, c=5.840) - relaxed
.cifCell + Ionic relaxation with Orb v3 conservative inf MPA; 0.03 eV/Å threshold; final energy = -33.7246 eV; energy change = -1.5063 eV; symmetry: P4/nmm → P4/nmm
MnAlGe phase diagram
.htmlPhase diagram of MnAlGe; eabovehull: 0.648383 eV/atom; predicted_stable: False
MnAlGe ICSD-anchored CIF (P4/nmm, a=3.915, c=5.840) - relaxed
.cifCell + Ionic relaxation with Orb v3; 0.03 eV/Å threshold; final energy = -33.7246 eV; energy change = -1.5063 eV; symmetry: P4/nmm → P4/nmm
Rare-earth-free magnet candidates
Single source of truth for the rare-earth-free permanent magnet discovery program (quest 01a06c81). One row per (candidate, attempt). Schema follows skills/discovery-loop.md: property columns carry values only with action receipts in actionids; stage/status enums gate tier-2 spend; ciffileid is a file-asset reference. Excluded elements: La through Lu, Sc, Y. Row hypothesisid='schema-v1' is a schema probe, not a candidate.
RE-free permanent magnet candidates: curated dataset for Oliynyk collaboration
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.