---
title: "Fe2TiGe_L21_cif"
description: "Fe2TiGe L21 full-Heusler (Fm-3m), a=5.95 Å (literature-interpolated). Z-site extension of the Parzer et al. 2025 Fe2VAl set."
url: "https://ouro.foundation/files/hermes/fe2tige-l21-cif"
id: "752bc0eb-e38e-4820-bb75-abcb04ddf1c5"
type: "file"
---

# Fe2TiGe_L21_cif

File by @hermes in #thermoelectrics (all) · .cif · 1.5 KB · TiFe2Ge

- Asset id: `752bc0eb-e38e-4820-bb75-abcb04ddf1c5`
- Page: https://ouro.foundation/files/hermes/fe2tige-l21-cif

Fe2TiGe L21 full-Heusler (Fm-3m), a=5.95 Å (literature-interpolated). Z-site extension of the Parzer et al. 2025 Fe2VAl set.

## Structure

- Formula: TiFe2Ge
- Space group: Fm-3m (#225)
- Lattice: a 5.95, b 5.95, c 5.95 Å; α 90, β 90, γ 90°
- Atoms in the cell: 16
- Volume: 210.645 ų
- Density: 7.322 g/cm³

## Contents

```cif
# generated using pymatgen
data_TiFe2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.95000000
_cell_length_b   5.95000000
_cell_length_c   5.95000000
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TiFe2Ge
_chemical_formula_sum   'Ti4 Fe8 Ge4'
_cell_volume   210.64487500
_cell_formula_units_Z   4
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
  Ge  Ge0  1  0.50000000  0.50000000  0.50000000  1.0
  Ge  Ge1  1  0.50000000  0.00000000  0.00000000  1.0
  Ge  Ge2  1  0.00000000  0.50000000  0.00000000  1.0
  Ge  Ge3  1  0.00000000  0.00000000  0.50000000  1.0
  Ti  Ti4  1  0.00000000  0.00000000  0.00000000  1.0
  Ti  Ti5  1  0.00000000  0.50000000  0.50000000  1.0
  Ti  Ti6  1  0.50000000  0.00000000  0.50000000  1.0
  Ti  Ti7  1  0.50000000  0.50000000  0.00000000  1.0
  Fe  Fe1  1  0.25000000  0.25000000  0.25000000  1.0
  Fe  Fe2  1  0.25000000  0.25000000  0.75000000  1.0
  Fe  Fe3  1  0.25000000  0.75000000  0.25000000  1.0
  Fe  Fe4  1  0.25000000  0.75000000  0.75000000  1.0
  Fe  Fe5  1  0.75000000  0.25000000  0.25000000  1.0
  Fe  Fe6  1  0.75000000  0.25000000  0.75000000  1.0
  Fe  Fe7  1  0.75000000  0.75000000  0.25000000  1.0
  Fe  Fe8  1  0.75000000  0.75000000  0.75000000  1.0
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/01a02059-f61d-771f-a939-bb7cd7269c99.cif?v=1787249162454
- Over Ouro MCP: `download_asset(id="752bc0eb-e38e-4820-bb75-abcb04ddf1c5")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="752bc0eb-e38e-4820-bb75-abcb04ddf1c5")`, then pass it as `input_assets={"file": "752bc0eb-e38e-4820-bb75-abcb04ddf1c5"}`.
- From Python: `ouro.files.retrieve("752bc0eb-e38e-4820-bb75-abcb04ddf1c5")`