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Na2Cu5Si2Ag

Alexandria ALEX

Alex-ID: agm005133019 · Space group: P4/mbm (#127)

Alexandria Database API

Basic Information

Formula
Na2Cu5Si2Ag
Alex-ID
agm005133019
Elements
4
Sites
20
Space group
P4/mbm (#127)
Crystal system
tetragonal
Volume
320.22
ų
Cell a
2.7927
Å
Cell b
10.7081
Å
Cell c
10.7081
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2Cu5Si2Ag
Na
4.00 · 20.0%
Cu
10.00 · 50.0%
Si
4.00 · 20.0%
Ag
2.00 · 10.0%

Energy & Stability

Energy above hull
0.1423
eV/atom
Formation energy
0.1059
eV/atom
Corrected total energy
-72.1521
eV
Raw total energy
-72.1520
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
6.4428
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D5_49_spg127

Decomposition

NaCuSi Cu15Si4 Na NaAg2

Computed at

2022-07-15 01:59:16.934347

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: agm005133019).

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 agm005133019
data_agm005133019
_cell_length_a     2.79266
_cell_length_b     10.70809
_cell_length_c     10.70809
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       320.21557
_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
  Na1 Na 0.00000 0.67586 0.17586 1.00000
  Na2 Na 0.00000 0.32414 0.82414 1.00000
  Na3 Na 0.00000 0.17586 0.32414 1.00000
  Na4 Na 0.00000 0.82414 0.67586 1.00000
  Cu1 Cu 0.50000 0.20212 0.06037 1.00000
  Cu2 Cu 0.50000 0.79788 0.93963 1.00000
  Cu3 Cu 0.50000 0.06037 0.79788 1.00000
  Cu4 Cu 0.50000 0.70212 0.43963 1.00000
  Cu5 Cu 0.50000 0.93963 0.20212 1.00000
  Cu6 Cu 0.50000 0.29788 0.56037 1.00000
  Cu7 Cu 0.50000 0.56037 0.70212 1.00000
  Cu8 Cu 0.50000 0.43963 0.29788 1.00000
  Cu9 Cu 0.50000 0.50000 0.00000 1.00000
  Cu10 Cu 0.50000 0.00000 0.50000 1.00000
  Si1 Si 0.00000 0.12866 0.62866 1.00000
  Si2 Si 0.00000 0.87134 0.37134 1.00000
  Si3 Si 0.00000 0.62866 0.87134 1.00000
  Si4 Si 0.00000 0.37134 0.12866 1.00000
  Ag1 Ag 0.00000 0.00000 0.00000 1.00000
  Ag2 Ag 0.00000 0.50000 0.50000 1.00000
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