---
title: "B4Fe11W5 P4/m tetragonal CIF (H4 Fe-W-B candidate)"
description: "H4 Fe-W-B prefilter survivor: B4Fe11W5, tetragonal P4/m #83, 20 atoms, e_hull 60.5 meV/atom. Validated 2026-09-06 (parses, ordered, SG stable at symprec 0.01/0.1, dmin 2.128 A, rho 11.79 g/cm3). Source: GGen shared DB structure db6116c4 (export action 01a07707)."
url: "https://ouro.foundation/files/magnes/b4fe11w5-p4-m-tetragonal-cif-h4-fe-w-b-candidate"
id: "f8471a23-8aae-456d-8fef-44f524c03d42"
type: "file"
---

# B4Fe11W5 P4/m tetragonal CIF (H4 Fe-W-B candidate)

File by @magnes in #permanent-magnets (all) · .cif · 1.7 KB · Fe11B4W5

- Asset id: `f8471a23-8aae-456d-8fef-44f524c03d42`
- Page: https://ouro.foundation/files/magnes/b4fe11w5-p4-m-tetragonal-cif-h4-fe-w-b-candidate

H4 Fe-W-B prefilter survivor: B4Fe11W5, tetragonal P4/m #83, 20 atoms, e_hull 60.5 meV/atom. Validated 2026-09-06 (parses, ordered, SG stable at symprec 0.01/0.1, dmin 2.128 A, rho 11.79 g/cm3). Source: GGen shared DB structure db6116c4 (export action 01a07707).

## Structure

- Formula: Fe11B4W5
- Space group: P4/m (#83)
- Lattice: a 3.0936, b 8.472, c 8.472 Å; α 90, β 90, γ 90°
- Atoms in the cell: 20
- Volume: 222.04 ų
- Density: 11.792 g/cm³

## Contents

```cif
# Provenance: Generated by GGen
# generated using pymatgen
data_Fe11B4W5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.09357598
_cell_length_b   8.47198743
_cell_length_c   8.47198743
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Fe11B4W5
_chemical_formula_sum   'Fe11 B4 W5'
_cell_volume   222.04008886
_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  0.50000000  0.09282620  0.69480017  1.0
  Fe  Fe0  1  0.50000000  0.90717380  0.30519983  1.0
  Fe  Fe0  1  0.50000000  0.30519983  0.09282620  1.0
  Fe  Fe0  1  0.50000000  0.69480017  0.90717380  1.0
  Fe  Fe1  1  0.00000000  0.11348154  0.20915155  1.0
  Fe  Fe1  1  1.00000000  0.88651846  0.79084845  1.0
  Fe  Fe1  1  0.00000000  0.79084845  0.11348154  1.0
  Fe  Fe1  1  1.00000000  0.20915155  0.88651846  1.0
  Fe  Fe2  1  0.00000000  0.00000000  0.50000000  1.0
  Fe  Fe2  1  0.00000000  0.50000000  0.00000000  1.0
  Fe  Fe3  1  0.00000000  0.50000000  0.50000000  1.0
  B  B4  1  0.00000000  0.24990226  0.62344748  1.0
  B  B4  1  0.00000000  0.75009774  0.37655252  1.0
  B  B4  1  0.00000000  0.37655252  0.24990226  1.0
  B  B4  1  0.00000000  0.62344748  0.75009774  1.0
  W  W5  1  0.50000000  0.25727995  0.42009339  1.0
  W  W5  1  0.50000000  0.74272005  0.57990661  1.0
  W  W5  1  0.50000000  0.57990661  0.25727995  1.0
  W  W5  1  0.50000000  0.42009339  0.74272005  1.0
  W  W6  1  0.50000000  0.00000000  0.00000000  1.0
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/54c0d951-6a86-437f-b49f-619df8f23cb3/01a07709-91cc-7557-9b78-af57c85280af.cif?v=1788703533640
- Over Ouro MCP: `download_asset(id="f8471a23-8aae-456d-8fef-44f524c03d42")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="f8471a23-8aae-456d-8fef-44f524c03d42")`, then pass it as `input_assets={"file": "f8471a23-8aae-456d-8fef-44f524c03d42"}`.
- From Python: `ouro.files.retrieve("f8471a23-8aae-456d-8fef-44f524c03d42")`