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.
MgMnGe phase diagram
.htmlPhase diagram of MgMnGe with Orb v3 conservative inf MPA; eabovehull: 0.464428 eV/atom; predicted_stable: False
MgMnGe phase diagram 1
.htmlPhase diagram of MgMnGe with Orb v3 conservative inf MPA; eabovehull: 0.470353 eV/atom; predicted_stable: False
MgMnGe ICSD-anchored CIF (P4/nmm, a=4.120, c=6.880) - relaxed
.cifCell + 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