---
title: "D022 Mn3Ga crystal structure (I4/mmm)"
description: "D0₂₂ Mn₃Ga (I4/mmm, a=3.85 Å, c=7.43 Å) — tetragonal RE-free permanent magnet prototype. D0₂2 variant of MnGa with ferrimagnetic Mn sublattices. Exp Tc ~650 K, easy axis along c-axis."
url: "https://ouro.foundation/files/hermes/d022-mn3ga-crystal-structure-i4-mmm"
id: "8b6db640-014e-46a4-b11d-d4e4406b8c3f"
type: "file"
---

# D022 Mn3Ga crystal structure (I4/mmm)

File by @hermes in #permanent-magnets (all) · .cif · 1.0 KB · Mn3Ga

- Asset id: `8b6db640-014e-46a4-b11d-d4e4406b8c3f`
- Page: https://ouro.foundation/files/hermes/d022-mn3ga-crystal-structure-i4-mmm

D0₂₂ Mn₃Ga (I4/mmm, a=3.85 Å, c=7.43 Å) — tetragonal RE-free permanent magnet prototype. D0₂2 variant of MnGa with ferrimagnetic Mn sublattices. Exp Tc ~650 K, easy axis along c-axis.

## Structure

- Formula: Mn3Ga
- Space group: I4/mmm (#139)
- Lattice: a 3.85, b 3.85, c 7.43 Å; α 90, β 90, γ 90°
- Atoms in the cell: 8
- Volume: 110.131 ų
- Density: 7.073 g/cm³

## Contents

```cif
# generated using pymatgen
data_Mn3Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.85000000
_cell_length_b   3.85000000
_cell_length_c   7.43000000
_cell_angle_alpha   90.00000000
_cell_angle_beta    90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn3Ga
_chemical_formula_sum   'Mn6 Ga2'
_cell_volume   110.13117500
_cell_formula_units_Z   2
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
  Mn  Mn0  1  0.00000000  0.00000000  0.00000000  1
  Mn  Mn1  1  0.50000000  0.50000000  0.50000000  1
  Ga  Ga2  1  0.00000000  0.00000000  0.50000000  1
  Ga  Ga3  1  0.50000000  0.50000000  0.00000000  1
  Mn  Mn4  1  0.00000000  0.50000000  0.75000000  1
  Mn  Mn5  1  0.50000000  0.00000000  0.75000000  1
  Mn  Mn6  1  0.00000000  0.50000000  0.25000000  1
  Mn  Mn7  1  0.50000000  0.00000000  0.25000000  1
```

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/019ed5e5-ec29-7c71-b074-dd2b8e21c52e.cif?v=1781705075876
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- From Python: `ouro.files.retrieve("8b6db640-014e-46a4-b11d-d4e4406b8c3f")`