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Np4Co12Si

Alexandria ALEX

Alex-ID: agm099479210 · Space group: P4/mmm (#123)

Basic Information

Formula
Np4Co12Si
Alex-ID
agm099479210
Elements
3
Sites
17
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
232.27
ų
Cell a
7.5495
Å
Cell b
7.5495
Å
Cell c
4.0753
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np4Co12Si
Np
4.00 · 23.5%
Co
12.00 · 70.6%
Si
1.00 · 5.9%

Energy & Stability

Energy above hull
0.1982
eV/atom
Formation energy
0.0299
eV/atom
Corrected total energy
-142.1636
eV
Raw total energy
-142.1636
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
27.3709
Total magnetisation
-5.3141
μB

Additional Information

Prototype ID

AB4C12_714_spg123

Decomposition

Co2Si NpCo Co

Computed at

2025-04-21 07:53:41

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: agm099479210).

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 agm099479210
data_agm099479210
_cell_length_a     7.54952
_cell_length_b     7.54952
_cell_length_c     4.07531
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       232.27313
_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 0.24802 0.24802 0.00000 1.00000
  Np2 Np 0.75198 0.24802 0.00000 1.00000
  Np3 Np 0.24802 0.75198 0.00000 1.00000
  Np4 Np 0.75198 0.75198 0.00000 1.00000
  Co1 Co 0.50000 0.19745 0.50000 1.00000
  Co2 Co 0.00000 0.23638 0.50000 1.00000
  Co3 Co 0.50000 0.80255 0.50000 1.00000
  Co4 Co 0.00000 0.76362 0.50000 1.00000
  Co5 Co 0.19745 0.50000 0.50000 1.00000
  Co6 Co 0.80255 0.50000 0.50000 1.00000
  Co7 Co 0.23638 0.00000 0.50000 1.00000
  Co8 Co 0.76362 0.00000 0.50000 1.00000
  Co9 Co 0.50000 0.50000 0.00000 1.00000
  Co10 Co 0.00000 0.50000 0.00000 1.00000
  Co11 Co 0.50000 0.00000 0.00000 1.00000
  Co12 Co 0.00000 0.00000 0.00000 1.00000
  Si1 Si 0.50000 0.50000 0.50000 1.00000
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