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NpGa9Co2

Alexandria ALEX

Alex-ID: agm005919331 · Space group: I4_1/amd (#141)

Basic Information

Formula
NpGa9Co2
Alex-ID
agm005919331
Elements
3
Sites
24
Space group
I4_1/amd (#141)
Crystal system
tetragonal
Volume
387.51
ų
Cell a
7.2607
Å
Cell b
8.1579
Å
Cell c
8.1578
Å
α angle
78.58
°
β angle
63.58
°
γ angle
63.58
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpGa9Co2
Np
2.00 · 8.3%
Ga
18.00 · 75.0%
Co
4.00 · 16.7%

Energy & Stability

Energy above hull
0.1662
eV/atom
Formation energy
-0.0895
eV/atom
Corrected total energy
-111.0533
eV
Raw total energy
-111.0533
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0078
eV
DOS at Fermi level
27.7709
Total magnetisation
8.8271
μB

Additional Information

Prototype ID

AB2C9_2_spg141

Decomposition

NpGa5Co Ga3Co Ga

Computed at

2023-07-24 07:04:32.990912

Citation

Alexandria website
https://alexandria.icams.rub.de/
Attribution

The crystal structure and related material properties of this entry were obtained from the Alexandria database (Alex-ID: agm005919331).

Reference

Th. Cavignac, J. Schmidt, P.-P. De Breuck, A. Loew, T. F. T. Cerqueira, H.-C. Wang, A. Bochkarev, Y. Lysogorskiy, A. H. Romero, R. Drautz, S. Botti and M. A. L. Marques. AI-Driven expansion and application of the Alexandria database. J. Phys. Mater. 9, 025014 (2026). https://doi.org/10.1088/2515-7639/ae6620

BibTeX
@article{Cavignac2026Alexandria,
  author  = {Cavignac, Th{\'e}o and Schmidt, Jonathan and De Breuck, Pierre-Paul and Loew, Antoine
             and Cerqueira, Tiago F. T. and Wang, Hai-Chen and Bochkarev, Anton
             and Lysogorskiy, Yury and Romero, Aldo H. and Drautz, Ralf and Botti, Silvana
             and Marques, Miguel A. L.},
  title   = {{AI}-Driven expansion and application of the {A}lexandria database},
  journal = {Journal of Physics: Materials},
  year    = {2026},
  volume  = {9},
  number  = {2},
  pages   = {025014},
  doi     = {10.1088/2515-7639/ae6620},
  url     = {https://doi.org/10.1088/2515-7639/ae6620}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# CIF generated by HEAS from Alexandria entry agm005919331
data_agm005919331
_cell_length_a     7.26073
_cell_length_b     8.15786
_cell_length_c     8.15777
_cell_angle_alpha  78.57830
_cell_angle_beta   63.57700
_cell_angle_gamma  63.57580
_cell_volume       387.51350
_symmetry_space_group_name_H-M 'P 1'
_symmetry_Int_Tables_number 1
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
  Np1 Np 0.50000 0.00000 0.00000 1.00000
  Np2 Np 0.25000 0.50000 0.50000 1.00000
  Ga1 Ga 0.75000 0.50000 0.50000 1.00000
  Ga2 Ga 0.00000 0.00000 0.00000 1.00000
  Ga3 Ga 0.00959 0.92229 0.67983 1.00000
  Ga4 Ga 0.61171 0.07771 0.32017 1.00000
  Ga5 Ga 0.68188 0.17983 0.57771 1.00000
  Ga6 Ga 0.43942 0.82017 0.42229 1.00000
  Ga7 Ga 0.74041 0.82017 0.57771 1.00000
  Ga8 Ga 0.13829 0.17983 0.42229 1.00000
  Ga9 Ga 0.06812 0.92229 0.32017 1.00000
  Ga10 Ga 0.31058 0.07771 0.67983 1.00000
  Ga11 Ga 0.74041 0.57771 0.82017 1.00000
  Ga12 Ga 0.13829 0.42229 0.17983 1.00000
  Ga13 Ga 0.06812 0.32017 0.92229 1.00000
  Ga14 Ga 0.31058 0.67983 0.07771 1.00000
  Ga15 Ga 0.00959 0.67983 0.92229 1.00000
  Ga16 Ga 0.61171 0.32017 0.07771 1.00000
  Ga17 Ga 0.68188 0.57771 0.17983 1.00000
  Ga18 Ga 0.43942 0.42229 0.82017 1.00000
  Co1 Co 0.87500 0.25000 0.75000 1.00000
  Co2 Co 0.87500 0.75000 0.25000 1.00000
  Co3 Co 0.87500 0.25000 0.25000 1.00000
  Co4 Co 0.37500 0.75000 0.75000 1.00000
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