GGen ran 1,000 trials across 100 Co-Fe-N-Sb stoichiometries in 26.4 min, keeping 859 relaxed structures. 40 of them landed within 150 meV/atom of the convex hull, 40 of which the database had not seen before. The leading generated candidate is CoFe6N in I4mm (#107), which sits 62 meV/atom above the hull (new composition).
Metric | Value |
|---|---|
Chemical system | Co-Fe-N-Sb |
Stoichiometries | 100 |
Trials per stoichiometry | 10 |
GGen ran 1,000 trials across 100 Co-Fe-N-Sb stoichiometries in 26.4 min, keeping 859 relaxed structures. 40 of them landed within 150 meV/atom of the convex hull, 40 of which the database had not seen before. The leading generated candidate is CoFe6N in I4mm (#107), which sits 62 meV/atom above the hull (new composition).
Total trials |
1,000 |
Structures kept | 859 across 104 formulas |
Failed stoichiometries | 0 |
Phases on the hull | 0 |
Phases within 150 meV/atom | 40 |
New compositions | 40 |
New polymorphs | 0 |
Best hull distance | 62 meV/atom (CoFe6N) |
Wall time | 26.4 min |
The shared GGen database carries the published structures for this system, so a generated phase whose formula is absent from them is a new composition, and one whose space group is absent is a new polymorph. Hull counts cover compounds only.
Metric | Value |
|---|---|
Structures known | 9,177 |
Generated by GGen | 8,833 |
From Alexandria | 230 |
From the Materials Project | 114 |
Unique formulas | 996 |
Subsystems covered | 15 |
Phases on the hull | 22 |
Phases within 150 meV/atom | 524 |
Exploration runs | 1 |
Last explored | 2026-08-19T05:03:40 |
Hull distances are computed against every Co-Fe-N-Sb structure in the shared GGen database, so phases from earlier runs and from the Materials Project appear alongside this run's candidates.
# | Formula | Space group | Crystal system | E_hull (meV/atom) | On hull | Novelty | Source | From this run | E/atom (eV) | Atoms | Volume/atom (ų) |
|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Co10Fe14 | P-3m1 (#164) | trigonal | 0 | yes | new polymorph | GGen | no | -7.947 | 24 | 11.5 |
2 | Co2Fe14 | Im-3m (#229) | cubic | 0 | yes | known | GGen | no | -8.303 | 16 | 11.6 |
3 | Co2Fe2 | Pm-3m (#221) | cubic | 0 | yes | known | GGen | no | -7.833 | 2 | 11.5 |
4 | Co4Fe8 | P2/m (#10) | monoclinic | 0 | yes | new polymorph | GGen | no | -8.056 | 12 | 11.6 |
5 | CoFe11 | P2/m (#10) | monoclinic | 0 | yes | new composition | GGen | no | -8.347 | 12 | 11.5 |
6 | CoFe20 | C2/m (#12) | monoclinic | 0 | yes | new composition | GGen | no | -8.385 | 42 | 11.5 |
7 | CoFe24 | C2/m (#12) | monoclinic | 0 | yes | new composition | GGen | no | -8.393 | 50 | 11.5 |
8 | CoFe3 | P4/mmm (#123) | tetragonal | 0 | yes | known | GGen | no | -8.160 | 4 | 11.6 |
9 | CoSb | P6_3/mmc (#194) | hexagonal | 0 | yes | reference | MP | no | -5.772 | 4 | 16.9 |
10 | CoSb3 | Im-3 (#204) | cubic | 0 | yes | reference | MP | no | -5.061 | 16 | 23.7 |
11 | Fe11Co5 | P4/mmm (#123) | tetragonal | 0 | yes | reference | MP | no | -8.082 | 16 | 11.6 |
12 | Fe13Co3 | P4/mmm (#123) | tetragonal | 0 | yes | reference | MP | no | -8.232 | 16 | 11.6 |
13 | Fe3N | P6_322 (#182) | hexagonal | 0 | yes | reference | MP | no | -8.502 | 8 | 10.1 |
14 | Fe5Co3 | Im-3m (#229) | cubic | 0 | yes | reference | MP | no | -8.002 | 8 | 11.5 |
15 | Fe7Co | Im-3m (#229) | cubic | 0 | yes | reference | MP | no | -8.303 | 8 | 11.6 |
16 | Fe9Co7 | Pm-3m (#221) | cubic | 0 | yes | reference | MP | no | -7.920 | 16 | 11.5 |
17 | FeN | F-43m (#216) | cubic | 0 | yes | reference | MP | no | -8.518 | 2 | 9.5 |
18 | FeSb2 | Pnnm (#58) | orthorhombic | 0 | yes | reference | MP | no | -5.603 | 6 | 20.2 |
19 | Co4Fe4 | Pm-3m (#221) | cubic | 0 | yes | known | GGen | no | -7.833 | 2 | 11.5 |
20 | CoFe | Pm-3m (#221) | cubic | 0 | yes | known | GGen | no | -7.833 | 2 | 11.5 |
21 | Co2Fe6 | P4/mmm (#123) | tetragonal | 0 | yes | known | GGen | no | -8.160 | 4 | 11.6 |
22 | FeCo | Pm-3m (#221) | cubic | 0 | yes | reference | MP | no | -7.833 | 2 | 11.5 |
23 | Fe3Co | P4/mmm (#123) | tetragonal | 0 | no | reference | MP | no | -8.159 | 4 | 11.6 |
24 | Co7Fe9 | Pm-3m (#221) | cubic | 0 | no | known | GGen | no | -7.920 | 16 | 11.5 |
25 | CoFe13 | C2/m (#12) | monoclinic | 0 | no | new polymorph | GGen | no | -8.360 | 14 | 11.5 |
Showing the 25 closest of 524 phases; the summary JSON below has the full list.
Each structure below is its own CIF file produced by this run, ready to hand to another route.
CoFe6N in I4mm (#107), 62 meV/atom above the hull, -8.269 eV/atom, 16 atoms.
GGen Co-Fe-N-Sb candidate: I4mm (#107), 62 meV/atom above the hull, -8.269 eV/atom, 16 atoms
Co5Fe8N in Cm (#8), 69 meV/atom above the hull, -7.960 eV/atom, 28 atoms.
GGen Co-Fe-N-Sb candidate: Cm (#8), 69 meV/atom above the hull, -7.960 eV/atom, 28 atoms
Co2Fe12NSb in P1 (#1), 74 meV/atom above the hull, -7.985 eV/atom, 16 atoms.
GGen Co-Fe-N-Sb candidate: P1 (#1), 74 meV/atom above the hull, -7.985 eV/atom, 16 atoms
The hull is drawn from every Co-Fe-N-Sb structure in the database, published and generated alike, so the binary phases that shape it appear alongside this run's candidates.
Interactive phase diagram built from every Co-Fe-N-Sb structure in the GGen database
Stage | Seconds | Share |
|---|---|---|
Candidate generation | 1521.1 | 96% |
Candidate relaxation gpu | 1368.0 | 86% |
Candidate generation cpu | 242.3 | 15% |
Terminal generation | 59.2 | 4% |
Hull and stability | 1.6 | 0% |
Enumeration | 1.0 | 0% |
Setup and load | 0.9 | 0% |
Finalization | 0.0 | 0% |
Total | 1583.8 | 100% |
Parameter | Value |
|---|---|
Min atoms | 2 |
Max atoms | 16 |
Trials per composition | 10 |
Max stoichiometries | 100 |
Crystal systems | tetragonal, orthorhombic, hexagonal |
Min element fraction | {'Fe': 0.4, 'Co': 0.1, 'N': 0.05} |
Max element fraction | {'Sb': 0.25, 'N': 0.2} |
Require all elements | False |
Skip existing formulas | False |
Near-hull cutoff (eV/atom) | 0.15 |
Relaxation max steps | 400 |
Relaxation optimizer | fire |
Structured exploration summary, parameters, database stats, and stable phase metadata
Selected stable or near-hull GGen candidates as CIF files