---
title: "Zr₆Ga₄Fe₁₂C, U₆Co₁₂Ge₄C type (Im-3m), above the PBE hull"
description: "Primitive cell (23 atoms), relaxed with Orb v3. Built by substitution from the U₆Co₁₂Ge₄C prototype (U→Zr, Co→Fe, Ge→Ga). New composition (not in Materials Project, Alexandria, GNoME or COD). Orb hull 6.7 meV/atom; +28.2 meV/atom above ZrC + GaFe₃ + Zr₂GaFe₃ in PBE (ABACUS, TZDP single point). Sun-t"
url: "https://ouro.foundation/files/mmoderwell/zr6ga4fe12c-u6co12ge4c-type-im-3m-above-the-pbe-hull"
id: "942d3c5c-7103-424d-af62-dac987c04c0a"
type: "file"
---

# Zr₆Ga₄Fe₁₂C, U₆Co₁₂Ge₄C type (Im-3m), above the PBE hull

File by @mmoderwell in #permanent-magnets (all) · .cif · 1.8 KB · Zr6Ga4Fe12C

- Asset id: `942d3c5c-7103-424d-af62-dac987c04c0a`
- Page: https://ouro.foundation/files/mmoderwell/zr6ga4fe12c-u6co12ge4c-type-im-3m-above-the-pbe-hull

Primitive cell (23 atoms), relaxed with Orb v3. Built by substitution from the U₆Co₁₂Ge₄C prototype (U→Zr, Co→Fe, Ge→Ga). New composition (not in Materials Project, Alexandria, GNoME or COD). Orb hull 6.7 meV/atom; +28.2 meV/atom above ZrC + GaFe₃ + Zr₂GaFe₃ in PBE (ABACUS, TZDP single point). Sun-tetragonal campaign, loop 5: a sibling of Zr₆Fe₁₂Si₄C that does not hold up.

## Structure

- Formula: Zr6Ga4Fe12C
- Space group: Im-3m (#229)
- Lattice: a 7.5139, b 7.5139, c 7.5139 Å; α 109.47, β 109.47, γ 109.47°
- Atoms in the cell: 23
- Volume: 326.566 Å³
- Density: 7.67 g/cm³

## Contents

```cif
# generated using pymatgen
data_Zr6Ga4Fe12C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.51388222
_cell_length_b   7.51388222
_cell_length_c   7.51388222
_cell_angle_alpha   109.47122063
_cell_angle_beta   109.47122063
_cell_angle_gamma   109.47122063
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zr6Ga4Fe12C
_chemical_formula_sum   'Zr6 Ga4 Fe12 C1'
_cell_volume   326.56621916
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Zr  Zr0  1  0.27195833  0.27195833  0.00000000  1
  Zr  Zr1  1  0.72804167  0.72804167  0.00000000  1
  Zr  Zr2  1  0.00000000  0.27195833  0.27195833  1
  Zr  Zr3  1  0.00000000  0.72804167  0.72804167  1
  Zr  Zr4  1  0.27195833  0.00000000  0.27195833  1
  Zr  Zr5  1  0.72804167  0.00000000  0.72804167  1
  Ga  Ga6  1  0.50000000  0.50000000  0.50000000  1
  Ga  Ga7  1  0.50000000  1.00000000  0.00000000  1
  Ga  Ga8  1  0.00000000  0.00000000  0.50000000  1
  Ga  Ga9  1  0.00000000  0.50000000  0.00000000  1
  Fe  Fe10  1  0.00000000  0.65661176  0.34338824  1
  Fe  Fe11  1  0.00000000  0.34338824  0.65661176  1
  Fe  Fe12  1  0.65661176  0.31322352  0.65661176  1
  Fe  Fe13  1  0.34338824  0.68677648  0.34338824  1
  Fe  Fe14  1  0.31322352  0.65661176  0.65661176  1
  Fe  Fe15  1  0.68677648  0.34338824  0.34338824  1
  Fe  Fe16  1  0.65661176  0.00000000  0.34338824  1
  Fe  Fe17  1  0.34338824  0.00000000  0.65661176  1
  Fe  Fe18  1  0.65661176  0.65661176  0.31322352  1
  Fe  Fe19  1  0.34338824  0.34338824  0.68677648  1
  Fe  Fe20  1  0.34338824  0.65661176  1.00000000  1
  Fe  Fe21  1  0.65661176  0.34338824  0.00000000  1
  C  C22  1  0.00000000  0.00000000  0.00000000  1
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/847f4445-78ee-41b1-913b-5bd155c71b13/01a1d61a-9ca0-74db-8784-71c816c55026.cif?v=1794605159401
- Over Ouro MCP: `download_asset(id="942d3c5c-7103-424d-af62-dac987c04c0a")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="942d3c5c-7103-424d-af62-dac987c04c0a")`, then pass it as `input_assets={"file": "942d3c5c-7103-424d-af62-dac987c04c0a"}`.
- From Python: `ouro.files.retrieve("942d3c5c-7103-424d-af62-dac987c04c0a")`
