Material:

ScFeC2

ID:

MMD-2081

Explore database:

Compounds with the same formula: ScFeC2 (1 entry found)
Compounds with the same elements: Sc-Fe-C (2 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

129

Hermann-Mauguin

P4/nmm

Hall

P 4ab 2ab -1ab

Point group

4/mmm

Structure data:

Normalized formula

ScFeC2

The number of formula units per unit cell

2

The total number of atoms per unit cell

8

The number of inequivalent sites per unit cell

4

Structure search

MP

Lattice parameters:

a (Å)

3.3542

b (Å)

3.3542

c (Å)

7.3150

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

82.299

Density (g/cm3)

5.037

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-331.3 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: ScFeC2

1 entry found

Compounds with the same elements: Sc-Fe-C

2 entries found

Binary compounds in Sc-Fe system

5 entries found

Binary compounds in Sc-C system

No entries found

Binary compounds in Fe-C system

19 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

1.82 μB/cell

Averaged magnetic moment

0.23 μB/atom

Magnetic polarization, Js = μ0Ms

0.26 T (= 206.9 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 Sc 2c 0.000000 0.500000 0.651652 -0.03 . .
2 Sc 2c 0.500000 0.000000 0.348348 -0.03 . .
3 Fe 2a 0.000000 0.000000 0.000000 0.99 . .
4 Fe 2a 0.500000 0.500000 0.000000 0.99 . .
5 C 2c 0.000000 0.500000 0.156510 -0.04 . .
6 C 2c 0.500000 0.000000 0.843490 -0.04 . .
7 C 2c 0.000000 0.500000 0.349899 0.00 . .
8 C 2c 0.500000 0.000000 0.650101 0.00 . .
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 Sc 2c 2 Sc 2c 3.25 .
1 Sc 2c 3 Fe 2a 3.05 .
1 Sc 2c 4 Fe 2a 3.05 .
1 Sc 2c 5 C 2c 3.62 .
1 Sc 2c 6 C 2c 2.76 .
1 Sc 2c 7 C 2c 2.21 .
1 Sc 2c 8 C 2c 2.37 .
2 Sc 2c 3 Fe 2a 3.05 .
2 Sc 2c 4 Fe 2a 3.05 .
2 Sc 2c 5 C 2c 2.76 .
2 Sc 2c 6 C 2c 3.62 .
2 Sc 2c 7 C 2c 2.37 .
2 Sc 2c 8 C 2c 2.21 .
3 Fe 2a 4 Fe 2a 2.37 .
3 Fe 2a 5 C 2c 2.03 .
3 Fe 2a 6 C 2c 2.03 .
3 Fe 2a 7 C 2c 3.06 .
3 Fe 2a 8 C 2c 3.06 .
4 Fe 2a 5 C 2c 2.03 .
4 Fe 2a 6 C 2c 2.03 .
4 Fe 2a 7 C 2c 3.06 .
4 Fe 2a 8 C 2c 3.06 .
5 C 2c 6 C 2c 3.30 .
5 C 2c 7 C 2c 1.41 .
5 C 2c 8 C 2c 4.32 .
6 C 2c 7 C 2c 4.32 .
6 C 2c 8 C 2c 1.41 .
7 C 2c 8 C 2c 3.23 .
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-1080113
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