Material:

Co6N

ID:

MMD-140

Explore database:

Compounds with the same formula: Co6N (14 entries found)
Compounds with the same elements: Co-N (183 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

trigonal

Space group number

162

Hermann-Mauguin

P-31m

Hall

-P 3 2

Point group

-3m

Structure data:

Normalized formula

Co6N

The number of formula units per unit cell

1

The total number of atoms per unit cell

7

The number of inequivalent sites per unit cell

2

Structure search

AGA search

Lattice parameters:

a (Å)

4.4397

b (Å)

4.4397

c (Å)

4.2021

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

120.000

Volume (Å3)

71.730

Density (g/cm3)

8.510

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

81.8 meV/atom

Formation energy above hull

81.8 meV/atom

Phase diagram:

Phase diagram

Related structures:

Compounds with the same formula: Co6N

14 entries found

Compounds with the same elements: Co-N

183 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

8.70 μB/cell

Averaged magnetic moment

1.24 μB/atom

Magnetic polarization, Js = μ0Ms

1.41 T (= 1122.0 emu/cm3)
LMTO-GF calculations (details)

Curie temperature, TC

DFT calculations (details)

Magnetic anisotropy constant, Ka-c

0.54 MJ/m3 (= 0.24 meV/cell)

Magnetic easy axis

c

Magnetic hardness parameter, κ

0.58

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

index species w x y z m (μB) Esoc100 (meV) Esoc001 (meV)
1 N 1a 0.000000 0.000000 0.000000 0.00 . .
2 Co 6k 0.658270 0.000000 0.739830 1.43 . .
3 Co 6k 0.341730 0.000000 0.260170 1.43 . .
4 Co 6k 0.000000 0.658270 0.739830 1.43 . .
5 Co 6k 0.000000 0.341730 0.260170 1.43 . .
6 Co 6k 0.341730 0.341730 0.739830 1.43 . .
7 Co 6k 0.658270 0.658270 0.260170 1.43 . .
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 1a 2 Co 6k 1.87 .
1 N 1a 3 Co 6k 1.87 .
1 N 1a 4 Co 6k 1.87 .
1 N 1a 5 Co 6k 1.87 .
1 N 1a 6 Co 6k 1.87 .
1 N 1a 7 Co 6k 1.87 .
2 Co 6k 3 Co 6k 2.46 .
2 Co 6k 4 Co 6k 2.53 .
2 Co 6k 5 Co 6k 2.52 .
2 Co 6k 6 Co 6k 2.53 .
2 Co 6k 7 Co 6k 2.52 .
3 Co 6k 4 Co 6k 2.52 .
3 Co 6k 5 Co 6k 2.53 .
3 Co 6k 6 Co 6k 2.52 .
3 Co 6k 7 Co 6k 2.53 .
4 Co 6k 5 Co 6k 2.46 .
4 Co 6k 6 Co 6k 2.53 .
4 Co 6k 7 Co 6k 2.52 .
5 Co 6k 6 Co 6k 2.52 .
5 Co 6k 7 Co 6k 2.53 .
6 Co 6k 7 Co 6k 2.46 .
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) = (16, 16, 14) 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

Phys. Rev. B 94, 224424 (2016). DOI: 10.1103/PhysRevB.94.224424
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