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Nb4Cu15

Alexandria ALEX

Alex-ID: agm073025909 · Space group: I-43d (#220)

Basic Information

Formula
Nb4Cu15
Alex-ID
agm073025909
Elements
2
Sites
38
Space group
I-43d (#220)
Crystal system
cubic
Volume
519.24
ų
Cell a
8.7700
Å
Cell b
8.7700
Å
Cell c
8.7700
Å
α angle
109.47
°
β angle
109.47
°
γ angle
109.47
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Nb4Cu15
Nb
8.00 · 21.1%
Cu
30.00 · 78.9%

Energy & Stability

Energy above hull
0.2102
eV/atom
Formation energy
0.2102
eV/atom
Corrected total energy
-197.3697
eV
Raw total energy
-197.3697
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
15.0661
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A4B15_2_spg220

Decomposition

Cu Nb

Computed at

2024-10-20 11:15:44

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: agm073025909).

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 agm073025909
data_agm073025909
_cell_length_a     8.76995
_cell_length_b     8.76995
_cell_length_c     8.76995
_cell_angle_alpha  109.47122
_cell_angle_beta   109.47122
_cell_angle_gamma  109.47122
_cell_volume       519.24185
_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
  Nb1 Nb 0.58817 0.58817 0.58817 1.00000
  Nb2 Nb 0.91183 0.50000 0.00000 1.00000
  Nb3 Nb 0.08817 0.08817 0.08817 1.00000
  Nb4 Nb 0.00000 0.41183 0.50000 1.00000
  Nb5 Nb 0.00000 0.91183 0.50000 1.00000
  Nb6 Nb 0.41183 0.50000 0.00000 1.00000
  Nb7 Nb 0.50000 0.00000 0.41183 1.00000
  Nb8 Nb 0.50000 0.00000 0.91183 1.00000
  Cu1 Cu 0.85881 0.93203 0.72553 1.00000
  Cu2 Cu 0.25000 0.12500 0.87500 1.00000
  Cu3 Cu 0.56797 0.42678 0.79351 1.00000
  Cu4 Cu 0.42678 0.79351 0.56797 1.00000
  Cu5 Cu 0.13327 0.77447 0.70649 1.00000
  Cu6 Cu 0.57322 0.86673 0.14119 1.00000
  Cu7 Cu 0.64119 0.36673 0.07322 1.00000
  Cu8 Cu 0.29351 0.92678 0.06797 1.00000
  Cu9 Cu 0.86673 0.14119 0.57322 1.00000
  Cu10 Cu 0.36673 0.07322 0.64119 1.00000
  Cu11 Cu 0.72553 0.85881 0.93203 1.00000
  Cu12 Cu 0.35881 0.22553 0.43203 1.00000
  Cu13 Cu 0.12500 0.87500 0.25000 1.00000
  Cu14 Cu 0.93203 0.72553 0.85881 1.00000
  Cu15 Cu 0.37500 0.62500 0.75000 1.00000
  Cu16 Cu 0.20649 0.27447 0.63327 1.00000
  Cu17 Cu 0.27447 0.63327 0.20649 1.00000
  Cu18 Cu 0.63327 0.20649 0.27447 1.00000
  Cu19 Cu 0.43203 0.35881 0.22553 1.00000
  Cu20 Cu 0.87500 0.25000 0.12500 1.00000
  Cu21 Cu 0.77447 0.70649 0.13327 1.00000
  Cu22 Cu 0.70649 0.13327 0.77447 1.00000
  Cu23 Cu 0.06797 0.29351 0.92678 1.00000
  Cu24 Cu 0.07322 0.64119 0.36673 1.00000
  Cu25 Cu 0.22553 0.43203 0.35881 1.00000
  Cu26 Cu 0.79351 0.56797 0.42678 1.00000
  Cu27 Cu 0.14119 0.57322 0.86673 1.00000
  Cu28 Cu 0.75000 0.37500 0.62500 1.00000
  Cu29 Cu 0.92678 0.06797 0.29351 1.00000
  Cu30 Cu 0.62500 0.75000 0.37500 1.00000
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