Material:

MnFeSi4

ID:

MMD-2554

Explore database:

Compounds with the same formula: MnFeSi4 (1 entry found)
Compounds with the same elements: Mn-Fe-Si (8 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

123

Hermann-Mauguin

P4/mmm

Hall

-P 4 2

Point group

4/mmm

Structure data:

Normalized formula

MnFeSi4

The number of formula units per unit cell

1

The total number of atoms per unit cell

6

The number of inequivalent sites per unit cell

4

Structure search

MP

Lattice parameters:

a (Å)

2.7295

b (Å)

2.7295

c (Å)

10.2855

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

76.627

Density (g/cm3)

4.835

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-347.1 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: MnFeSi4

1 entry found

Compounds with the same elements: Mn-Fe-Si

8 entries found

Binary compounds in Mn-Fe system

6 entries found

Binary compounds in Mn-Si system

11 entries found

Binary compounds in Fe-Si system

47 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

0.50 μB/cell

Averaged magnetic moment

0.08 μB/atom

Magnetic polarization, Js = μ0Ms

0.08 T (= 63.7 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 1b 0.000000 0.000000 0.500000 0.38 . .
2 Fe 1a 0.000000 0.000000 0.000000 0.10 . .
3 Si 2h 0.500000 0.500000 0.364526 -0.01 . .
4 Si 2h 0.500000 0.500000 0.864339 -0.00 . .
5 Si 2h 0.500000 0.500000 0.135661 -0.00 . .
6 Si 2h 0.500000 0.500000 0.635474 -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 1b 2 Fe 1a 5.14 .
1 Mn 1b 3 Si 2h 2.38 .
1 Mn 1b 4 Si 2h 4.22 .
1 Mn 1b 5 Si 2h 4.22 .
1 Mn 1b 6 Si 2h 2.38 .
2 Fe 1a 3 Si 2h 4.22 .
2 Fe 1a 4 Si 2h 2.38 .
2 Fe 1a 5 Si 2h 2.38 .
2 Fe 1a 6 Si 2h 4.22 .
3 Si 2h 4 Si 2h 5.14 .
3 Si 2h 5 Si 2h 2.35 .
3 Si 2h 6 Si 2h 2.79 .
4 Si 2h 5 Si 2h 2.79 .
4 Si 2h 6 Si 2h 2.35 .
5 Si 2h 6 Si 2h 5.14 .
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) = (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-1221606
You can download and use the data of this database for your scientific work, provided that you express proper acknowledgements: