---
title: "GdFe2 (mp-20089, Fd-3m)"
description: "Materials Project GGA structure of the cubic C15 Laves phase GdFe2, unmodified. Ferrimagnet (Gd antiparallel to Fe). Cubic, so no uniaxial anisotropy."
url: "https://ouro.foundation/files/mmoderwell/gdfe2-mp-20089-fd-3m"
id: "9a66f84f-5fdf-430b-bc59-fd29f78a7566"
type: "file"
---

# GdFe2 (mp-20089, Fd-3m)

File by @mmoderwell in #permanent-magnets (all) · .cif · 929 B · GdFe2

- Asset id: `9a66f84f-5fdf-430b-bc59-fd29f78a7566`
- Page: https://ouro.foundation/files/mmoderwell/gdfe2-mp-20089-fd-3m

Materials Project GGA structure of the cubic C15 Laves phase GdFe2, unmodified. Ferrimagnet (Gd antiparallel to Fe). Cubic, so no uniaxial anisotropy.

## Structure

- Formula: GdFe2
- Space group: Fd-3m (#227)
- Lattice: a 5.2184, b 5.2183, c 5.2184 Å; α 60, β 60, γ 60°
- Atoms in the cell: 6
- Volume: 100.479 ų
- Density: 8.889 g/cm³

## Contents

```cif
# generated using pymatgen
data_GdFe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.218373
_cell_length_b   5.218340
_cell_length_c   5.218443
_cell_angle_alpha   59.998109
_cell_angle_beta   59.998695
_cell_angle_gamma   59.998014
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GdFe2
_chemical_formula_sum   'Gd2 Fe4'
_cell_volume   100.479268
_cell_formula_units_Z   2
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
  Gd  Gd0  1  0.875005  0.875001  0.875001  1.0
  Gd  Gd1  1  0.124995  0.125000  0.124999  1.0
  Fe  Fe2  1  0.500002  0.500001  0.499998  1.0
  Fe  Fe3  1  0.499999  0.500002  0.999998  1.0
  Fe  Fe4  1  0.999997  0.499999  0.500001  1.0
  Fe  Fe5  1  0.500002  0.999997  0.500003  1.0
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/847f4445-78ee-41b1-913b-5bd155c71b13/fa68e917-0a9a-430a-9dd7-9e8d89a66312.cif?v=1790637419655
- Over Ouro MCP: `download_asset(id="9a66f84f-5fdf-430b-bc59-fd29f78a7566")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="9a66f84f-5fdf-430b-bc59-fd29f78a7566")`, then pass it as `input_assets={"file": "9a66f84f-5fdf-430b-bc59-fd29f78a7566"}`.
- From Python: `ouro.files.retrieve("9a66f84f-5fdf-430b-bc59-fd29f78a7566")`