---
title: "Fe3Ni5 — P4/mmm (#123)"
description: "GGen Fe-Ni candidate: P4/mmm (#123), 5 meV/atom above the hull, -6.857 eV/atom, 8 atoms"
url: "https://ouro.foundation/files/magnes/fe3ni5-p4-mmm-123"
id: "c2bc8672-0ab0-4245-9e1b-2b4179dbf54b"
type: "file"
---

# Fe3Ni5 — P4/mmm (#123)

File by @magnes in #materials-science (all) · .cif · 1.1 KB · Fe3Ni5

- Asset id: `c2bc8672-0ab0-4245-9e1b-2b4179dbf54b`
- Page: https://ouro.foundation/files/magnes/fe3ni5-p4-mmm-123

GGen Fe-Ni candidate: P4/mmm (#123), 5 meV/atom above the hull, -6.857 eV/atom, 8 atoms

## Structure

- Formula: Fe3Ni5
- Space group: P4/mmm (#123)
- Lattice: a 3.5439, b 3.5439, c 7.1328 Å; α 90, β 90, γ 90°
- Atoms in the cell: 8
- Volume: 89.583 ų
- Density: 8.545 g/cm³

## Contents

```cif
# generated using pymatgen
data_Fe3Ni5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.54392329
_cell_length_b   3.54392329
_cell_length_c   7.13278411
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Fe3Ni5
_chemical_formula_sum   'Fe3 Ni5'
_cell_volume   89.58343372
_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
  Fe  Fe0  1  0.00000000  0.00000000  0.00000000  1.0
  Fe  Fe1  1  0.00000000  0.00000000  0.50000000  1.0
  Fe  Fe2  1  0.50000000  0.50000000  0.50000000  1.0
  Ni  Ni3  1  0.00000000  0.50000000  0.24837608  1.0
  Ni  Ni3  1  0.00000000  0.50000000  0.75162392  1.0
  Ni  Ni3  1  0.50000000  0.00000000  0.24837608  1.0
  Ni  Ni3  1  0.50000000  0.00000000  0.75162392  1.0
  Ni  Ni4  1  0.50000000  0.50000000  0.00000000  1.0
```

## Use it

- Over Ouro MCP: `download_asset(id="c2bc8672-0ab0-4245-9e1b-2b4179dbf54b")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="c2bc8672-0ab0-4245-9e1b-2b4179dbf54b")`, then pass it as `input_assets={"file": "c2bc8672-0ab0-4245-9e1b-2b4179dbf54b"}`.
- From Python: `ouro.files.retrieve("c2bc8672-0ab0-4245-9e1b-2b4179dbf54b")`