Material:

Mn2SeN2

ID:

MMD-2989

Explore database:

Compounds with the same formula: Mn2SeN2 (1 entry found)
Compounds with the same elements: Mn-Se-N (3 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

164

Hermann-Mauguin

P-3m1

Hall

-P 3 2"

Point group

-3m

Structure data:

Normalized formula

Mn2SeN2

The number of formula units per unit cell

1

The total number of atoms per unit cell

5

The number of inequivalent sites per unit cell

3

Structure search

MP

Lattice parameters:

a (Å)

3.1782

b (Å)

3.1782

c (Å)

6.4024

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

120.000

Volume (Å3)

56.005

Density (g/cm3)

6.430

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

61.8 meV/atom

Formation energy above hull

Phase diagram:

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

Related structures:

Compounds with the same formula: Mn2SeN2

1 entry found

Compounds with the same elements: Mn-Se-N

3 entries found

Binary compounds in Mn-Se system

6 entries found

Binary compounds in Mn-N system

12 entries found

Binary compounds in Se-N system

No entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

0.91 μB/cell

Averaged magnetic moment

0.18 μB/atom

Magnetic polarization, Js = μ0Ms

0.19 T (= 151.2 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 Mn 2d 0.666667 0.333333 0.680583 0.43 . .
2 Mn 2d 0.333333 0.666667 0.319417 0.43 . .
3 Se 1a 0.000000 0.000000 0.000000 -0.05 . .
4 N 2d 0.666667 0.333333 0.368068 -0.03 . .
5 N 2d 0.333333 0.666667 0.631932 -0.03 . .
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 2d 2 Mn 2d 2.95 .
1 Mn 2d 3 Se 1a 2.75 .
1 Mn 2d 4 N 2d 2.00 .
1 Mn 2d 5 N 2d 1.86 .
2 Mn 2d 3 Se 1a 2.75 .
2 Mn 2d 4 N 2d 1.86 .
2 Mn 2d 5 N 2d 2.00 .
3 Se 1a 4 N 2d 2.99 .
3 Se 1a 5 N 2d 2.99 .
4 N 2d 5 N 2d 2.49 .
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

Materials Project: mp-1247335
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