GGen ran 1,000 trials across 100 Co-Fe-Ge stoichiometries in 23.1 min, keeping 978 relaxed structures. 55 of them landed within 150 meV/atom of the convex hull, 54 of which the database had not seen before. The leading generated candidate is Co2Fe7Ge in Cm (#8), which sits 2 meV/atom above the hull (new composition).
GGen ran 1,000 trials across 100 Co-Fe-Ge stoichiometries in 23.1 min, keeping 978 relaxed structures. 55 of them landed within 150 meV/atom of the convex hull, 54 of which the database had not seen before. The leading generated candidate is Co2Fe7Ge in Cm (#8), which sits 2 meV/atom above the hull (new composition).
Metric | Value |
|---|---|
Chemical system | Co-Fe-Ge |
Stoichiometries | 100 |
Trials per stoichiometry | 10 |
Total trials | 1,000 |
Structures kept | 978 across 103 formulas |
Failed stoichiometries | 0 |
Phases on the hull | 0 |
Phases within 150 meV/atom | 55 |
New compositions | 45 |
New polymorphs | 9 |
Best hull distance | 2 meV/atom (Co2Fe7Ge) |
Wall time | 23.1 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 | 7,039 |
Generated by GGen | 6,821 |
From Alexandria | 144 |
From the Materials Project | 74 |
Hull distances are computed against every Co-Fe-Ge 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 |
|---|
Showing the 25 closest of 711 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.
Co2Fe7Ge in Cm (#8), 2 meV/atom above the hull, -7.876 eV/atom, 20 atoms.
GGen Co-Fe-Ge candidate: Cm (#8), 2 meV/atom above the hull, -7.876 eV/atom, 20 atoms
Co5Fe11 in Pm-3m (#221), 3 meV/atom above the hull, -8.079 eV/atom, 16 atoms.
GGen Co-Fe-Ge candidate: Pm-3m (#221), 3 meV/atom above the hull, -8.079 eV/atom, 16 atoms
Co4Fe10 in P2_1/m (#11), 3 meV/atom above the hull, -8.112 eV/atom, 14 atoms.
GGen Co-Fe-Ge candidate: P2_1/m (#11), 3 meV/atom above the hull, -8.112 eV/atom, 14 atoms
The hull is drawn from every Co-Fe-Ge 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-Ge structure in the GGen database
Stage | Seconds | Share |
|---|---|---|
Candidate generation | 1343.0 | 97% |
Candidate relaxation gpu | 1144.3 | 82% |
Candidate generation cpu |
Parameter | Value |
|---|---|
Min atoms | 2 |
Max atoms | 16 |
Trials per composition | 10 |
Max stoichiometries | 100 |
Structured exploration summary, parameters, database stats, and stable phase metadata
Unique formulas |
846 |
Subsystems covered | 7 |
Phases on the hull | 24 |
Phases within 150 meV/atom | 711 |
Exploration runs | 12 |
Last explored | 2026-08-19T08:08:35 |
E/atom (eV) |
|---|
Atoms |
|---|
Volume/atom (ų) |
|---|
1 | Co2Fe14 | Im-3m (#229) | cubic | 0 | yes | known | GGen | no | -8.303 | 16 | 11.6 |
2 | Co2Ge | Pnma (#62) | orthorhombic | 0 | yes | reference | MP | no | -6.434 | 12 | 11.6 |
3 | Co3Fe5 | Cmmm (#65) | orthorhombic | 0 | yes | known | GGen | no | -8.003 | 16 | 11.5 |
4 | Co4Fe4 | Pm-3m (#221) | cubic | 0 | yes | known | GGen | no | -7.834 | 8 | 11.5 |
5 | Co4Fe6 | P4/m (#83) | tetragonal | 0 | yes | new polymorph | GGen | no | -7.970 | 10 | 11.5 |
6 | Co4Fe8 | P2/m (#10) | monoclinic | 0 | yes | new polymorph | GGen | no | -8.056 | 12 | 11.6 |
7 | Co4Fe9Ge3 | P-43m (#215) | cubic | 0 | yes | new composition | GGen | no | -7.515 | 16 | 11.7 |
8 | Co7Fe9 | Pm-3m (#221) | cubic | 0 | yes | known | GGen | no | -7.920 | 16 | 11.5 |
9 | CoFe13 | C2/m (#12) | monoclinic | 0 | yes | new polymorph | GGen | no | -8.360 | 28 | 11.5 |
10 | CoFe20 | C2/m (#12) | monoclinic | 0 | yes | new composition | GGen | no | -8.385 | 42 | 11.5 |
11 | CoFe24 | C2/m (#12) | monoclinic | 0 | yes | new composition | GGen | no | -8.393 | 50 | 11.5 |
12 | CoFe3 | P4/mmm (#123) | tetragonal | 0 | yes | known | GGen | no | -8.160 | 4 | 11.6 |
13 | CoGe | P2_13 (#198) | cubic | 0 | yes | reference | MP | no | -6.074 | 8 | 12.5 |
14 | CoGe2 | Cmce (#64) | orthorhombic | 0 | yes | reference | MP | no | -5.606 | 12 | 14.7 |
15 | Fe10Ge | C2/m (#12) | monoclinic | 0 | yes | new composition | GGen | no | -8.149 | 11 | 11.6 |
16 | Fe11Co5 | P4/mmm (#123) | tetragonal | 0 | yes | reference | MP | no | -8.082 | 16 | 11.6 |
17 | Fe11Ge | P2/m (#10) | monoclinic | 0 | yes | new composition | GGen | no | -8.174 | 12 | 11.6 |
18 | Fe13Co3 | P4/mmm (#123) | tetragonal | 0 | yes | reference | MP | no | -8.232 | 16 | 11.6 |
19 | Fe19Ge | P2/m (#10) | monoclinic | 0 | yes | new composition | GGen | no | -8.280 | 20 | 11.5 |
20 | Fe3Ge | Pm-3m (#221) | cubic | 0 | yes | reference | MP | no | -7.602 | 4 | 12.0 |
21 | Fe6Ge | R-3m (#166) | trigonal | 0 | yes | new composition | GGen | no | -7.977 | 7 | 11.8 |
22 | Fe7Co | Im-3m (#229) | cubic | 0 | yes | reference | MP | no | -8.303 | 8 | 11.6 |
23 | FeCo2Ge | Fm-3m (#225) | cubic | 0 | yes | reference | MP | no | -6.987 | 4 | 11.8 |
24 | FeGe | P6/mmm (#191) | hexagonal | 0 | yes | reference | MP | no | -6.658 | 6 | 14.4 |
25 | CoFe11 | P2/m (#10) | monoclinic | 0 | no | new composition | GGen | no | -8.347 | 12 | 11.5 |
158.7 |
11% |
Terminal generation | 41.9 | 3% |
Hull and stability | 2.0 | 0% |
Setup and load | 0.9 | 0% |
Enumeration | 0.3 | 0% |
Finalization | 0.0 | 0% |
Total | 1388.1 | 100% |
Crystal systems |
tetragonal, hexagonal, orthorhombic |
Min element fraction | {'Fe': 0.3, 'Co': 0.2} |
Max element fraction | {'Ge': 0.35} |
Require all elements | False |
Skip existing formulas | False |
Near-hull cutoff (eV/atom) | 0.15 |
Relaxation max steps | 400 |
Relaxation optimizer | fire |
Selected stable or near-hull GGen candidates as CIF files