Material:

Co2N

ID:

MMD-105

Explore database:

Compounds with the same formula: Co2N (32 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

triclinic

Space group number

1

Hermann-Mauguin

P1

Hall

P 1

Point group

1

Structure data:

Normalized formula

Co2N

The number of formula units per unit cell

2

The total number of atoms per unit cell

6

The number of inequivalent sites per unit cell

6

Structure search

AGA search

Lattice parameters:

a (Å)

2.8403

b (Å)

4.3996

c (Å)

4.5172

α (deg.)

87.029

β (deg.)

87.669

γ (deg.)

87.455

Volume (Å3)

56.276

Density (g/cm3)

7.782

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

113.2 meV/atom

Formation energy above hull

113.2 meV/atom

Phase diagram:

Phase diagram

Related structures:

Compounds with the same formula: Co2N

32 entries found

Compounds with the same elements: Co-N

183 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

0.86 μB/cell

Averaged magnetic moment

0.14 μB/atom

Magnetic polarization, Js = μ0Ms

0.18 T (= 143.2 emu/cm3)
LMTO-GF calculations (details)

Curie temperature, TC

DFT calculations (details)

Magnetic easy axis

Magnetic hardness parameter, κ

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 N 1a 0.574960 0.527240 0.523150 -0.01 . .
3 Co 1a 0.075130 0.308170 0.714440 0.15 . .
4 Co 1a 0.066820 0.750700 0.335110 0.01 . .
5 Co 1a 0.604980 0.262370 0.217910 0.69 . .
6 Co 1a 0.531030 0.798390 0.829800 -0.02 . .
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 N 1a 3.29 .
1 N 1a 3 Co 1a 1.84 .
1 N 1a 4 Co 1a 1.83 .
1 N 1a 5 Co 1a 1.86 .
1 N 1a 6 Co 1a 1.85 .
2 N 1a 3 Co 1a 1.89 .
2 N 1a 4 Co 1a 1.89 .
2 N 1a 5 Co 1a 1.85 .
2 N 1a 6 Co 1a 1.87 .
3 Co 1a 4 Co 1a 2.53 .
3 Co 1a 5 Co 1a 2.59 .
3 Co 1a 6 Co 1a 2.58 .
4 Co 1a 5 Co 1a 2.60 .
4 Co 1a 6 Co 1a 2.59 .
5 Co 1a 6 Co 1a 2.78 .
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:


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) = (None, None, None) 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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