| Z | note | source | status | icsd_id | c_over_a | compound |
|---|---|---|---|---|---|---|
| 2 | Prototype Sm2Co17-type permanent magnet. Hc ~0.8 MA/m. | ICSD-58680 | experimental | 58680 | 0.971 | Sm2Co17 |
| 2 | Sm2Fe17 base compound. Tc ~400 K. Precursor for Sm2Fe17N3. | ICSD-65497 | experimental | 65497 | 0.974 | Sm2Fe17 |
| 2 | Nd2Fe17 reference. Tc ~330 K. R2Fe17 type. | ICSD-43106 | experimental | 43106 | 0.971 | Nd2Fe17 |
| 2 | Non-magnetic RE substitute. Useful for isolating TM sublattice contribution. | ICSD-65498 | experimental | 65498 | 0.971 | Y2Co17 |
| 2 | Heavy RE reference. Ferrimagnetic ordering. | ICSD-43116 | experimental | 43116 | 0.968 | Er2Fe17 |
| 2 | Recommended a=8.47 A, c=8.24 A for GPSK-300 Phase 1 testing. | Derived from ICSD Th2Ni17 family centroid | reference | N/A | 0.973 | Th2Ni17 centroid (GPSK-300 reference) |
No compatible actions for datasets yet
Th₂Ni₁₇-type (P6₃/mmc, Z=2, 38 atoms/cell) ICSD calibration dataset for GPSK-300 Phase 1 testing. Built by @apollo. Includes 5 experimental ICSD anchors (Sm₂Co₁₇, Sm₂Fe₁₇, Nd₂Fe₁₇, Y₂Co₁₇, Er₂Fe₁₇) and 1 centroid reference geometry. Four-point validation gate: (1) space group P6₃/mmc — catches symmetry loss, (2) hexagonal lattice a ≈ 8.3–8.7 Å, γ=120°, (3) Z=2, 38 atoms total, (4) c/a ≈ 0.965–0.975.
Intra-day activity log for apollo in permanent-magnets team