Material:

Y(CoB)2

ID:

MMD-1985

Explore database:

Compounds with the same formula: Y(CoB)2 (1 entry found)
Compounds with the same elements: Y-Co-B (7 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

139

Hermann-Mauguin

I4/mmm

Hall

-I 4 2

Point group

4/mmm

Structure data:

Normalized formula

Y(CoB)2

The number of formula units per unit cell

2

The total number of atoms per unit cell

10

The number of inequivalent sites per unit cell

3

Structure search

MP

Lattice parameters:

a (Å)

3.5518

b (Å)

3.5518

c (Å)

9.4409

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

119.102

Density (g/cm3)

6.369

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-582.8 meV/atom

Formation energy above hull

0 meV, (stable)

Phase diagram:

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

Related structures:

Compounds with the same formula: Y(CoB)2

1 entry found

Compounds with the same elements: Y-Co-B

7 entries found

Binary compounds in Y-Co system

18 entries found

Binary compounds in Y-B system

No entries found

Binary compounds in Co-B system

6 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

non-magnetic

Total magnetic moment

0.00 μB/cell

Averaged magnetic moment

0.00 μB/atom

Magnetic polarization, Js = μ0Ms

0.00 T (= 0.0 emu/cm3)
Data for the Curie temperature are not available for this entry.
Data for the magnetic anisotropy are not available for this entry.

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

index species w x y z m (μB) Esoc100 (meV) Esoc001 (meV)
1 Y 2a 0.000000 0.000000 0.000000 -0.00 . .
2 Y 2a 0.500000 0.500000 0.500000 -0.00 . .
3 Co 4d 0.500000 0.000000 0.750000 0.00 . .
4 Co 4d 0.000000 0.500000 0.750000 0.00 . .
5 Co 4d 0.000000 0.500000 0.250000 0.00 . .
6 Co 4d 0.500000 0.000000 0.250000 0.00 . .
7 B 4e 0.000000 0.000000 0.652280 0.00 . .
8 B 4e 0.500000 0.500000 0.847720 0.00 . .
9 B 4e 0.500000 0.500000 0.152280 0.00 . .
10 B 4e 0.000000 0.000000 0.347720 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 Y 2a 2 Y 2a 5.35 .
1 Y 2a 3 Co 4d 2.95 .
1 Y 2a 4 Co 4d 2.95 .
1 Y 2a 5 Co 4d 2.95 .
1 Y 2a 6 Co 4d 2.95 .
1 Y 2a 7 B 4e 3.28 .
1 Y 2a 8 B 4e 2.89 .
1 Y 2a 9 B 4e 2.89 .
1 Y 2a 10 B 4e 3.28 .
2 Y 2a 3 Co 4d 2.95 .
2 Y 2a 4 Co 4d 2.95 .
2 Y 2a 5 Co 4d 2.95 .
2 Y 2a 6 Co 4d 2.95 .
2 Y 2a 7 B 4e 2.89 .
2 Y 2a 8 B 4e 3.28 .
2 Y 2a 9 B 4e 3.28 .
2 Y 2a 10 B 4e 2.89 .
3 Co 4d 4 Co 4d 2.51 .
3 Co 4d 5 Co 4d 5.35 .
3 Co 4d 6 Co 4d 4.72 .
3 Co 4d 7 B 4e 2.00 .
3 Co 4d 8 B 4e 2.00 .
3 Co 4d 9 B 4e 4.19 .
3 Co 4d 10 B 4e 4.19 .
4 Co 4d 5 Co 4d 4.72 .
4 Co 4d 6 Co 4d 5.35 .
4 Co 4d 7 B 4e 2.00 .
4 Co 4d 8 B 4e 2.00 .
4 Co 4d 9 B 4e 4.19 .
4 Co 4d 10 B 4e 4.19 .
5 Co 4d 6 Co 4d 2.51 .
5 Co 4d 7 B 4e 4.19 .
5 Co 4d 8 B 4e 4.19 .
5 Co 4d 9 B 4e 2.00 .
5 Co 4d 10 B 4e 2.00 .
6 Co 4d 7 B 4e 4.19 .
6 Co 4d 8 B 4e 4.19 .
6 Co 4d 9 B 4e 2.00 .
6 Co 4d 10 B 4e 2.00 .
7 B 4e 8 B 4e 3.12 .
7 B 4e 9 B 4e 5.35 .
7 B 4e 10 B 4e 2.88 .
8 B 4e 9 B 4e 2.88 .
8 B 4e 10 B 4e 5.35 .
9 B 4e 10 B 4e 3.12 .
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-3515
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