Material:

MnGa4

ID:

MMD-903

Explore database:

Compounds with the same formula: MnGa4 (1 entry found)
Compounds with the same elements: Mn-Ga (13 entries found)
Navigation:
Space group | Lattice parameters | Thermodynamic properties | Phase diagram | Magnetic properties | Atomic positions and site-specific magnetic data | Pair-wise magnetic data | Methods | References

Space group:

Crystal system

cubic

Space group number

229

Hermann-Mauguin

Im-3m

Hall

-I 4 2 3

Point group

m-3m

Structure data:

Normalized formula

MnGa4

The number of formula units per unit cell

2

The total number of atoms per unit cell

10

The number of inequivalent sites per unit cell

2

Structure search

MP

Lattice parameters:

a (Å)

5.6170

b (Å)

5.6170

c (Å)

5.6170

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

177.220

Density (g/cm3)

6.256

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-155.0 meV/atom

Formation energy above hull

0 meV, (stable)

Phase diagram:

Phase diagram

Related structures:

Compounds with the same formula: MnGa4

1 entry found

Compounds with the same elements: Mn-Ga

13 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

1.32 μB/cell

Averaged magnetic moment

0.13 μB/atom

Magnetic polarization, Js = μ0Ms

0.09 T (= 71.6 emu/cm3)
LMTO-GF calculations (details)

Curie temperature, TC

DFT calculations (details)

Magnetic anisotropy constant, Kd-a

-0.02 MJ/m3 (= -0.02 meV/cell)

Magnetic easy axis

<111>

Magnetic hardness parameter, κ

1.86

Atomic positions (fractional coordinates) and site-specific magnetic data:

index species w x y z m (μB) Esoc100 (meV) Esoc001 (meV)
1 Mn 2a 0.000000 0.000000 0.000000 0.71 . .
2 Mn 2a 0.500000 0.500000 0.500000 0.71 . .
3 Ga 8c 0.750000 0.750000 0.250000 -0.01 . .
4 Ga 8c 0.750000 0.250000 0.750000 -0.01 . .
5 Ga 8c 0.250000 0.750000 0.750000 -0.01 . .
6 Ga 8c 0.750000 0.750000 0.750000 -0.01 . .
7 Ga 8c 0.250000 0.250000 0.750000 -0.01 . .
8 Ga 8c 0.250000 0.750000 0.250000 -0.01 . .
9 Ga 8c 0.750000 0.250000 0.250000 -0.01 . .
10 Ga 8c 0.250000 0.250000 0.250000 -0.01 . .
w: site multiplicity (the number of equivalent positions) and Wyckoff letter (a label for site symmetry)
m: local magnetic moment
Esoc100 (001): Spin-orbit coupling energy for the magnetization oriented along the crystallographic a (c) axis
(Individual Esoc values are temporarily not available while we perform maintenance.)
Terms and conditions

Site-resolved magnetic moments:

Local magnetic moments

Pair-wise magnetic data:

site i site j distance (Å) Jij (meV)
1 Mn 2a 2 Mn 2a 4.86 .
1 Mn 2a 3 Ga 8c 2.43 .
1 Mn 2a 4 Ga 8c 2.43 .
1 Mn 2a 5 Ga 8c 2.43 .
1 Mn 2a 6 Ga 8c 2.43 .
1 Mn 2a 7 Ga 8c 2.43 .
1 Mn 2a 8 Ga 8c 2.43 .
1 Mn 2a 9 Ga 8c 2.43 .
1 Mn 2a 10 Ga 8c 2.43 .
2 Mn 2a 3 Ga 8c 2.43 .
2 Mn 2a 4 Ga 8c 2.43 .
2 Mn 2a 5 Ga 8c 2.43 .
2 Mn 2a 6 Ga 8c 2.43 .
2 Mn 2a 7 Ga 8c 2.43 .
2 Mn 2a 8 Ga 8c 2.43 .
2 Mn 2a 9 Ga 8c 2.43 .
2 Mn 2a 10 Ga 8c 2.43 .
3 Ga 8c 4 Ga 8c 3.97 .
3 Ga 8c 5 Ga 8c 3.97 .
3 Ga 8c 6 Ga 8c 2.81 .
3 Ga 8c 7 Ga 8c 4.86 .
3 Ga 8c 8 Ga 8c 2.81 .
3 Ga 8c 9 Ga 8c 2.81 .
3 Ga 8c 10 Ga 8c 3.97 .
4 Ga 8c 5 Ga 8c 3.97 .
4 Ga 8c 6 Ga 8c 2.81 .
4 Ga 8c 7 Ga 8c 2.81 .
4 Ga 8c 8 Ga 8c 4.86 .
4 Ga 8c 9 Ga 8c 2.81 .
4 Ga 8c 10 Ga 8c 3.97 .
5 Ga 8c 6 Ga 8c 2.81 .
5 Ga 8c 7 Ga 8c 2.81 .
5 Ga 8c 8 Ga 8c 2.81 .
5 Ga 8c 9 Ga 8c 4.86 .
5 Ga 8c 10 Ga 8c 3.97 .
6 Ga 8c 7 Ga 8c 3.97 .
6 Ga 8c 8 Ga 8c 3.97 .
6 Ga 8c 9 Ga 8c 3.97 .
6 Ga 8c 10 Ga 8c 4.86 .
7 Ga 8c 8 Ga 8c 3.97 .
7 Ga 8c 9 Ga 8c 3.97 .
7 Ga 8c 10 Ga 8c 2.81 .
8 Ga 8c 9 Ga 8c 3.97 .
8 Ga 8c 10 Ga 8c 2.81 .
9 Ga 8c 10 Ga 8c 2.81 .
Jij: magnetic exchange parameter between site i and j (Individual Jij values are temporarily not available while we perform maintenance.)
Export data (under construction)
  • csv
  • json
  • yaml
Terms and conditions

Pair-resolved magnetic exchange parameters:


Diagram is not available for this entry.

Individual exchange parameters:


Diagram is not available for this entry.

Methods:

DFT calculations

  • exchange-correlation energy functional: GGA-PBE
  • pseudopotential type: PAW
  • cutoff energy: 65.0 Ry
  • k-point grid: (kx, ky, kz) = (12, 12, 12) for magnetic anisotropy calculations
  • package: QE (v6.3)

LMTO-GF calculations

  • k-point grid: (kx, ky, kz) =
  • energy mesh: 41 points on an elliptical contour
  • package: Questaal (v7)

References:

References

Materials Project: mp-1069288
You can download and use the data of this database for your scientific work, provided that you express proper acknowledgements: