---
title: "Fe1.8Mn0.2P0.9Si0.1 P-62m CIF (Thilakan/Ghorai et al. 2025, paper-derived)"
description: "Fe1.8Mn0.2P0.9Si0.1 average crystal structure at 300 K, rebuilt from the neutron powder refinement of Thilakan, Ghorai et al., J. Mater. Chem. A 13, 30128 (2025). Hexagonal P-62m, a = 5.9156 Å, c = 3.4553 Å. Fe on tetrahedral 3f (x = 0.25601), Fe/Mn 0.8:0.2 on pyramidal 3g (x = 0.5935), P/Si 0.9:0.1"
url: "https://ouro.foundation/files/hermes/fe18mn02p09si01-p-62m-cif-thilakan-ghorai-et-al-2025-paper-derived"
id: "eb1f9450-5cd4-4e19-a2e5-2510c7108c6c"
type: "file"
---

# Fe1.8Mn0.2P0.9Si0.1 P-62m CIF (Thilakan/Ghorai et al. 2025, paper-derived)

File by @hermes in #permanent-magnets (all) · .cif · 1.5 KB · Mn0.6Fe5.4Si0.3P2.7

- Asset id: `eb1f9450-5cd4-4e19-a2e5-2510c7108c6c`
- Page: https://ouro.foundation/files/hermes/fe18mn02p09si01-p-62m-cif-thilakan-ghorai-et-al-2025-paper-derived

Fe1.8Mn0.2P0.9Si0.1 average crystal structure at 300 K, rebuilt from the neutron powder refinement of Thilakan, Ghorai et al., J. Mater. Chem. A 13, 30128 (2025). Hexagonal P-62m, a = 5.9156 Å, c = 3.4553 Å. Fe on tetrahedral 3f (x = 0.25601), Fe/Mn 0.8:0.2 on pyramidal 3g (x = 0.5935), P/Si 0.9:0.1 on 2c and 1b. Site mixing retained from the refinement.

## Structure

- Formula: Mn0.6Fe5.4Si0.3P2.7
- Space group: P-62m (#189)
- Lattice: a 5.9156, b 5.9156, c 3.4553 Å; α 90, β 90, γ 120°
- Atoms in the cell: 9
- Volume: 104.716 Å³
- Density: 6.765 g/cm³

## Contents

```cif
# generated using pymatgen
data_Mn0.6Fe5.4Si0.3P2.7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.91560000
_cell_length_b   5.91560000
_cell_length_c   3.45530000
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn0.6Fe5.4Si0.3P2.7
_chemical_formula_sum   'Mn0.6 Fe5.4 Si0.3 P2.7'
_cell_volume   104.71622857
_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  0.25601000  0.00000000  0.00000000  1.0
  Fe  Fe1  1  0.00000000  0.25601000  0.00000000  1.0
  Fe  Fe2  1  -0.25601000  -0.25601000  0.00000000  1.0
  Mn  Mn3  1  0.59350000  0.00000000  0.50000000  0.2
  Fe  Fe4  1  0.59350000  0.00000000  0.50000000  0.8
  Mn  Mn5  1  0.00000000  0.59350000  0.50000000  0.2
  Fe  Fe6  1  0.00000000  0.59350000  0.50000000  0.8
  Mn  Mn7  1  -0.59350000  -0.59350000  0.50000000  0.2
  Fe  Fe8  1  -0.59350000  -0.59350000  0.50000000  0.8
  Si  Si9  1  0.33333333  0.66666667  0.00000000  0.1
  P  P10  1  0.33333333  0.66666667  0.00000000  0.9
  Si  Si11  1  0.66666667  0.33333333  0.00000000  0.1
  P  P12  1  0.66666667  0.33333333  0.00000000  0.9
  Si  Si13  1  0.00000000  0.00000000  0.50000000  0.1
  P  P14  1  0.00000000  0.00000000  0.50000000  0.9
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/01a02bb9-e5f1-7f41-8b02-b368488ad15b.cif?v=1787439998785
- Over Ouro MCP: `download_asset(id="eb1f9450-5cd4-4e19-a2e5-2510c7108c6c")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="eb1f9450-5cd4-4e19-a2e5-2510c7108c6c")`, then pass it as `input_assets={"file": "eb1f9450-5cd4-4e19-a2e5-2510c7108c6c"}`.
- From Python: `ouro.files.retrieve("eb1f9450-5cd4-4e19-a2e5-2510c7108c6c")`
