Material:

Fe9Co7N2

ID:

MMD-494

Explore database:

Compounds with the same formula: Fe9Co7N2 (2 entries found)
Compounds with the same elements: Fe-Co-N (272 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

tetragonal

Space group number

115

Hermann-Mauguin

P-4m2

Hall

P -4 -2

Point group

-42m

Structure data:

Normalized formula

Fe9Co7N2

The number of formula units per unit cell

1

The total number of atoms per unit cell

18

The number of inequivalent sites per unit cell

8

Structure search

AGA search

Lattice parameters:

a (Å)

5.6120

b (Å)

5.6120

c (Å)

6.2400

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

196.526

Density (g/cm3)

7.969

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-16.9 meV/atom

Formation energy above hull

65.8 meV/atom

Phase diagram:

Phase diagram
The convex hull is temporarily not available while we perform maintenance.

Related structures:

Compounds with the same formula: Fe9Co7N2

2 entries found

Compounds with the same elements: Fe-Co-N

272 entries found

Binary compounds in Fe-Co system

11 entries found

Binary compounds in Fe-N system

38 entries found

Binary compounds in Co-N system

183 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

33.71 μB/cell

Averaged magnetic moment

1.87 μB/atom

Magnetic polarization, Js = μ0Ms

2.00 T (= 1591.5 emu/cm3)
LMTO-GF calculations (details)

Curie temperature, TC

DFT calculations (details)

Magnetic anisotropy constant, Ka-c

1.49 MJ/m3 (= 1.83 meV/cell)

Magnetic easy axis

c

Magnetic hardness parameter, κ

0.69

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

index species w x y z m (μB) Esoc100 (meV) Esoc001 (meV)
1 N 2g 0.000000 0.500000 0.249830 -0.04 . .
2 N 2g 0.500000 0.000000 0.750170 -0.04 . .
3 Co 2g 0.000000 0.500000 0.547060 1.24 . .
4 Co 2g 0.500000 0.000000 0.452940 1.24 . .
5 Co 2g 0.000000 0.500000 0.952900 1.25 . .
6 Co 2g 0.500000 0.000000 0.047100 1.25 . .
7 Co 1d 0.000000 0.000000 0.500000 1.84 . .
8 Co 1a 0.000000 0.000000 0.000000 1.84 . .
9 Co 1c 0.500000 0.500000 0.500000 1.85 . .
10 Fe 8l 0.758050 0.257330 0.250510 2.39 . .
11 Fe 8l 0.241950 0.742670 0.250510 2.39 . .
12 Fe 8l 0.257330 0.241950 0.749490 2.39 . .
13 Fe 8l 0.742670 0.758050 0.749490 2.39 . .
14 Fe 8l 0.758050 0.742670 0.250510 2.39 . .
15 Fe 8l 0.241950 0.257330 0.250510 2.39 . .
16 Fe 8l 0.257330 0.758050 0.749490 2.39 . .
17 Fe 8l 0.742670 0.241950 0.749490 2.39 . .
18 Fe 1b 0.500000 0.500000 0.000000 2.57 . .
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 N 2g 2 N 2g 5.05 .
1 N 2g 3 Co 2g 1.85 .
1 N 2g 4 Co 2g 4.17 .
1 N 2g 5 Co 2g 1.85 .
1 N 2g 6 Co 2g 4.17 .
1 N 2g 7 Co 1d 3.21 .
1 N 2g 8 Co 1a 3.21 .
1 N 2g 9 Co 1c 3.21 .
1 N 2g 10 Fe 8l 1.92 .
1 N 2g 11 Fe 8l 1.92 .
1 N 2g 12 Fe 8l 3.73 .
1 N 2g 13 Fe 8l 3.73 .
1 N 2g 14 Fe 8l 1.92 .
1 N 2g 15 Fe 8l 1.92 .
1 N 2g 16 Fe 8l 3.73 .
1 N 2g 17 Fe 8l 3.73 .
1 N 2g 18 Fe 1b 3.21 .
2 N 2g 3 Co 2g 4.17 .
2 N 2g 4 Co 2g 1.85 .
2 N 2g 5 Co 2g 4.17 .
2 N 2g 6 Co 2g 1.85 .
2 N 2g 7 Co 1d 3.21 .
2 N 2g 8 Co 1a 3.21 .
2 N 2g 9 Co 1c 3.21 .
2 N 2g 10 Fe 8l 3.73 .
2 N 2g 11 Fe 8l 3.73 .
2 N 2g 12 Fe 8l 1.92 .
2 N 2g 13 Fe 8l 1.92 .
2 N 2g 14 Fe 8l 3.73 .
2 N 2g 15 Fe 8l 3.73 .
2 N 2g 16 Fe 8l 1.92 .
2 N 2g 17 Fe 8l 1.92 .
2 N 2g 18 Fe 1b 3.21 .
3 Co 2g 4 Co 2g 4.01 .
3 Co 2g 5 Co 2g 2.53 .
3 Co 2g 6 Co 2g 5.05 .
3 Co 2g 7 Co 1d 2.82 .
3 Co 2g 8 Co 1a 3.98 .
3 Co 2g 9 Co 1c 2.82 .
3 Co 2g 10 Fe 8l 2.67 .
3 Co 2g 11 Fe 8l 2.67 .
3 Co 2g 12 Fe 8l 2.40 .
3 Co 2g 13 Fe 8l 2.40 .
3 Co 2g 14 Fe 8l 2.67 .
3 Co 2g 15 Fe 8l 2.67 .
3 Co 2g 16 Fe 8l 2.40 .
3 Co 2g 17 Fe 8l 2.40 .
3 Co 2g 18 Fe 1b 3.98 .
4 Co 2g 5 Co 2g 5.05 .
4 Co 2g 6 Co 2g 2.53 .
4 Co 2g 7 Co 1d 2.82 .
4 Co 2g 8 Co 1a 3.98 .
4 Co 2g 9 Co 1c 2.82 .
4 Co 2g 10 Fe 8l 2.40 .
4 Co 2g 11 Fe 8l 2.40 .
4 Co 2g 12 Fe 8l 2.67 .
4 Co 2g 13 Fe 8l 2.67 .
4 Co 2g 14 Fe 8l 2.40 .
4 Co 2g 15 Fe 8l 2.40 .
4 Co 2g 16 Fe 8l 2.67 .
4 Co 2g 17 Fe 8l 2.67 .
4 Co 2g 18 Fe 1b 3.98 .
5 Co 2g 6 Co 2g 4.01 .
5 Co 2g 7 Co 1d 3.98 .
5 Co 2g 8 Co 1a 2.82 .
5 Co 2g 9 Co 1c 3.98 .
5 Co 2g 10 Fe 8l 2.67 .
5 Co 2g 11 Fe 8l 2.67 .
5 Co 2g 12 Fe 8l 2.41 .
5 Co 2g 13 Fe 8l 2.41 .
5 Co 2g 14 Fe 8l 2.67 .
5 Co 2g 15 Fe 8l 2.67 .
5 Co 2g 16 Fe 8l 2.41 .
5 Co 2g 17 Fe 8l 2.41 .
5 Co 2g 18 Fe 1b 2.82 .
6 Co 2g 7 Co 1d 3.98 .
6 Co 2g 8 Co 1a 2.82 .
6 Co 2g 9 Co 1c 3.98 .
6 Co 2g 10 Fe 8l 2.41 .
6 Co 2g 11 Fe 8l 2.41 .
6 Co 2g 12 Fe 8l 2.67 .
6 Co 2g 13 Fe 8l 2.67 .
6 Co 2g 14 Fe 8l 2.41 .
6 Co 2g 15 Fe 8l 2.41 .
6 Co 2g 16 Fe 8l 2.67 .
6 Co 2g 17 Fe 8l 2.67 .
6 Co 2g 18 Fe 1b 2.82 .
7 Co 1d 8 Co 1a 3.12 .
7 Co 1d 9 Co 1c 3.97 .
7 Co 1d 10 Fe 8l 2.52 .
7 Co 1d 11 Fe 8l 2.52 .
7 Co 1d 12 Fe 8l 2.52 .
7 Co 1d 13 Fe 8l 2.52 .
7 Co 1d 14 Fe 8l 2.52 .
7 Co 1d 15 Fe 8l 2.52 .
7 Co 1d 16 Fe 8l 2.52 .
7 Co 1d 17 Fe 8l 2.52 .
7 Co 1d 18 Fe 1b 5.05 .
8 Co 1a 9 Co 1c 5.05 .
8 Co 1a 10 Fe 8l 2.52 .
8 Co 1a 11 Fe 8l 2.52 .
8 Co 1a 12 Fe 8l 2.52 .
8 Co 1a 13 Fe 8l 2.52 .
8 Co 1a 14 Fe 8l 2.52 .
8 Co 1a 15 Fe 8l 2.52 .
8 Co 1a 16 Fe 8l 2.52 .
8 Co 1a 17 Fe 8l 2.52 .
8 Co 1a 18 Fe 1b 3.97 .
9 Co 1c 10 Fe 8l 2.52 .
9 Co 1c 11 Fe 8l 2.52 .
9 Co 1c 12 Fe 8l 2.52 .
9 Co 1c 13 Fe 8l 2.52 .
9 Co 1c 14 Fe 8l 2.52 .
9 Co 1c 15 Fe 8l 2.52 .
9 Co 1c 16 Fe 8l 2.52 .
9 Co 1c 17 Fe 8l 2.52 .
9 Co 1c 18 Fe 1b 3.12 .
10 Fe 8l 11 Fe 8l 3.85 .
10 Fe 8l 12 Fe 8l 4.19 .
10 Fe 8l 13 Fe 8l 4.19 .
10 Fe 8l 14 Fe 8l 2.72 .
10 Fe 8l 15 Fe 8l 2.72 .
10 Fe 8l 16 Fe 8l 5.04 .
10 Fe 8l 17 Fe 8l 3.12 .
10 Fe 8l 18 Fe 1b 2.53 .
11 Fe 8l 12 Fe 8l 4.19 .
11 Fe 8l 13 Fe 8l 4.19 .
11 Fe 8l 14 Fe 8l 2.72 .
11 Fe 8l 15 Fe 8l 2.72 .
11 Fe 8l 16 Fe 8l 3.12 .
11 Fe 8l 17 Fe 8l 5.04 .
11 Fe 8l 18 Fe 1b 2.53 .
12 Fe 8l 13 Fe 8l 3.85 .
12 Fe 8l 14 Fe 8l 5.04 .
12 Fe 8l 15 Fe 8l 3.12 .
12 Fe 8l 16 Fe 8l 2.72 .
12 Fe 8l 17 Fe 8l 2.72 .
12 Fe 8l 18 Fe 1b 2.53 .
13 Fe 8l 14 Fe 8l 3.12 .
13 Fe 8l 15 Fe 8l 5.04 .
13 Fe 8l 16 Fe 8l 2.72 .
13 Fe 8l 17 Fe 8l 2.72 .
13 Fe 8l 18 Fe 1b 2.53 .
14 Fe 8l 15 Fe 8l 3.85 .
14 Fe 8l 16 Fe 8l 4.19 .
14 Fe 8l 17 Fe 8l 4.19 .
14 Fe 8l 18 Fe 1b 2.53 .
15 Fe 8l 16 Fe 8l 4.19 .
15 Fe 8l 17 Fe 8l 4.19 .
15 Fe 8l 18 Fe 1b 2.53 .
16 Fe 8l 17 Fe 8l 3.85 .
16 Fe 8l 18 Fe 1b 2.53 .
17 Fe 8l 18 Fe 1b 2.53 .
Jij: magnetic exchange parameter between site i and j (Individual Jij values are temporarily not available while we perform maintenance.)
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Terms and conditions

Pair-resolved magnetic exchange parameters:

Exchange coupling parameters

Individual exchange parameters:

Exchange coupling parameters

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, 10) 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

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