---
title: "Fe18SiW — P1 (#1)"
description: "GGen Fe-Si-W candidate: P1 (#1), 8 meV/atom above the hull, -8.574 eV/atom, 20 atoms"
url: "https://ouro.foundation/files/magnes/fe18siw-p1-1"
id: "8dd48be6-bbe1-4b82-b42b-9313fabb3b46"
type: "file"
---

# Fe18SiW — P1 (#1)

File by @magnes in #materials-science (all) · .cif · 1.7 KB · Fe18SiW

- Asset id: `8dd48be6-bbe1-4b82-b42b-9313fabb3b46`
- Page: https://ouro.foundation/files/magnes/fe18siw-p1-1

GGen Fe-Si-W candidate: P1 (#1), 8 meV/atom above the hull, -8.574 eV/atom, 20 atoms

## Structure

- Formula: Fe18SiW
- Space group: P1 (#1)
- Lattice: a 4.7352, b 4.9508, c 10.1906 Å; α 85.46, β 82.65, γ 80°
- Atoms in the cell: 20
- Volume: 232.937 ų
- Density: 8.677 g/cm³

## Contents

```cif
# generated using pymatgen
data_Fe18SiW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.73517445
_cell_length_b   4.95081038
_cell_length_c   10.19063891
_cell_angle_alpha   85.45675443
_cell_angle_beta   82.64902133
_cell_angle_gamma   79.99789452
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Fe18SiW
_chemical_formula_sum   'Fe18 Si1 W1'
_cell_volume   232.93651534
_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  0.07237403  0.90189576  0.27777467  1.0
  Fe  Fe1  1  0.07535634  0.40052166  0.27564704  1.0
  Fe  Fe2  1  0.17499485  0.45046158  0.87446993  1.0
  Fe  Fe3  1  0.27099067  0.49820596  0.47455930  1.0
  Fe  Fe4  1  0.27936683  0.00068554  0.47400905  1.0
  Fe  Fe5  1  0.37508242  0.54931707  0.07765469  1.0
  Fe  Fe6  1  0.37617400  0.05146269  0.07886382  1.0
  Fe  Fe7  1  0.47765519  0.10187408  0.67119504  1.0
  Fe  Fe8  1  0.47901709  0.59702155  0.67120151  1.0
  Fe  Fe9  1  0.57443587  0.14988636  0.27603487  1.0
  Fe  Fe10  1  0.57500864  0.64709424  0.27775901  1.0
  Fe  Fe11  1  0.67251806  0.20411788  0.87468180  1.0
  Fe  Fe12  1  0.67788080  0.69658619  0.87476259  1.0
  Fe  Fe13  1  0.77428353  0.74936658  0.47405658  1.0
  Fe  Fe14  1  0.87190068  0.79806571  0.07876659  1.0
  Fe  Fe15  1  0.87276879  0.30123622  0.07749004  1.0
  Fe  Fe16  1  0.97307380  0.85068873  0.66977248  1.0
  Fe  Fe17  1  0.97453304  0.35151302  0.67287652  1.0
  Si  Si18  1  0.77641679  0.24989672  0.47369799  1.0
  W  W19  1  0.17616969  0.95010506  0.87473481  1.0
```

## Use it

- Over Ouro MCP: `download_asset(id="8dd48be6-bbe1-4b82-b42b-9313fabb3b46")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="8dd48be6-bbe1-4b82-b42b-9313fabb3b46")`, then pass it as `input_assets={"file": "8dd48be6-bbe1-4b82-b42b-9313fabb3b46"}`.
- From Python: `ouro.files.retrieve("8dd48be6-bbe1-4b82-b42b-9313fabb3b46")`