Material:

Ni3Pt

ID:

MMD-1472

Explore database:

Compounds with the same formula: Ni3Pt (2 entries found)
Compounds with the same elements: Ni-Pt (5 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

Ni3Pt

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

3

Structure search

MP

Lattice parameters:

a (Å)

3.6528

b (Å)

3.6528

c (Å)

7.2203

α (deg.)

90.000

β (deg.)

90.000

γ (deg.)

90.000

Volume (Å3)

96.342

Density (g/cm3)

12.795

Crystal structure visualization:

Thermodynamic properties:

DFT calculations (details)

Formation energy (vs. elemental phases)

-65.1 meV/atom

Formation energy above hull

2.5 meV/atom

Phase diagram:

Phase diagram

Related structures:

Compounds with the same formula: Ni3Pt

2 entries found

Compounds with the same elements: Ni-Pt

5 entries found

Magnetic properties:

DFT calculations (details)

Magnetic ordering

Ferromagnetic

Total magnetic moment

4.85 μB/cell

Averaged magnetic moment

0.61 μB/atom

Magnetic polarization, Js = μ0Ms

0.59 T (= 469.5 emu/cm3)
LMTO-GF calculations (details)

Curie temperature, TC

DFT calculations (details)

Magnetic anisotropy constant, Ka-c

0.24 MJ/m3 (= 0.14 meV/cell)

Magnetic easy axis

c

Magnetic hardness parameter, κ

1.00

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

index species w x y z m (μB) Esoc100 (meV) Esoc001 (meV)
1 Ni 4d 0.000000 0.500000 0.250000 0.73 . .
2 Ni 4d 0.500000 0.000000 0.250000 0.73 . .
3 Ni 4d 0.500000 0.500000 0.000000 0.71 . .
4 Ni 4d 0.500000 0.000000 0.750000 0.73 . .
5 Ni 2b 0.000000 0.500000 0.750000 0.73 . .
6 Ni 2b 0.000000 0.000000 0.500000 0.71 . .
7 Pt 2a 0.000000 0.000000 0.000000 0.38 . .
8 Pt 2a 0.500000 0.500000 0.500000 0.38 . .
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 Ni 4d 2 Ni 4d 2.58 .
1 Ni 4d 3 Ni 4d 2.57 .
1 Ni 4d 4 Ni 4d 4.44 .
1 Ni 4d 5 Ni 2b 3.61 .
1 Ni 4d 6 Ni 2b 2.57 .
1 Ni 4d 7 Pt 2a 2.57 .
1 Ni 4d 8 Pt 2a 2.57 .
2 Ni 4d 3 Ni 4d 2.57 .
2 Ni 4d 4 Ni 4d 3.61 .
2 Ni 4d 5 Ni 2b 4.44 .
2 Ni 4d 6 Ni 2b 2.57 .
2 Ni 4d 7 Pt 2a 2.57 .
2 Ni 4d 8 Pt 2a 2.57 .
3 Ni 4d 4 Ni 4d 2.57 .
3 Ni 4d 5 Ni 2b 2.57 .
3 Ni 4d 6 Ni 2b 4.44 .
3 Ni 4d 7 Pt 2a 2.58 .
3 Ni 4d 8 Pt 2a 3.61 .
4 Ni 4d 5 Ni 2b 2.58 .
4 Ni 4d 6 Ni 2b 2.57 .
4 Ni 4d 7 Pt 2a 2.57 .
4 Ni 4d 8 Pt 2a 2.57 .
5 Ni 2b 6 Ni 2b 2.57 .
5 Ni 2b 7 Pt 2a 2.57 .
5 Ni 2b 8 Pt 2a 2.57 .
6 Ni 2b 7 Pt 2a 3.61 .
6 Ni 2b 8 Pt 2a 2.58 .
7 Pt 2a 8 Pt 2a 4.44 .
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:

Exchange coupling parameters

Individual exchange parameters:

Exchange coupling parameters

Methods:

DFT calculations

  • exchange-correlation energy functional: GGA-PBE
  • pseudopotential type: PAW
  • cutoff energy: 65.0 Ry
  • k-point grid: (kx, ky, kz) = (18, 18, 8) 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-1100766
You can download and use the data of this database for your scientific work, provided that you express proper acknowledgements: