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Sr2Cu12Si7

Alexandria ALEX

Alex-ID: agm005671868 · Space group: P-3 (#147)

Basic Information

Formula
Sr2Cu12Si7
Alex-ID
agm005671868
Elements
3
Sites
21
Space group
P-3 (#147)
Crystal system
trigonal
Volume
316.90
ų
Cell a
4.0125
Å
Cell b
9.5497
Å
Cell c
9.5497
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sr2Cu12Si7
Sr
2.00 · 9.5%
Cu
12.00 · 57.1%
Si
7.00 · 33.3%

Energy & Stability

Energy above hull
0.1056
eV/atom
Formation energy
-0.0990
eV/atom
Corrected total energy
-93.3382
eV
Raw total energy
-93.3382
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0129
eV
DOS at Fermi level
6.3666
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B7C12_16_spg147

Decomposition

Sr(CuSi)2 SrCu9Si4 Si

Computed at

2023-06-21 09:08:31.516964

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: agm005671868).

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 agm005671868
data_agm005671868
_cell_length_a     4.01249
_cell_length_b     9.54966
_cell_length_c     9.54966
_cell_angle_alpha  120.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       316.89910
_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
  Sr1 Sr 0.24868 0.33333 0.66667 1.00000
  Sr2 Sr 0.75132 0.66667 0.33333 1.00000
  Cu1 Cu 0.24637 0.62210 0.05213 1.00000
  Cu2 Cu 0.24637 0.43003 0.37790 1.00000
  Cu3 Cu 0.24637 0.94787 0.56997 1.00000
  Cu4 Cu 0.75363 0.37790 0.94787 1.00000
  Cu5 Cu 0.75363 0.56997 0.62210 1.00000
  Cu6 Cu 0.75363 0.05213 0.43003 1.00000
  Cu7 Cu 0.23338 0.12673 0.25928 1.00000
  Cu8 Cu 0.23338 0.13255 0.87327 1.00000
  Cu9 Cu 0.23338 0.74072 0.86745 1.00000
  Cu10 Cu 0.76662 0.87327 0.74072 1.00000
  Cu11 Cu 0.76662 0.86745 0.12673 1.00000
  Cu12 Cu 0.76662 0.25928 0.13255 1.00000
  Si1 Si 0.50000 0.00000 0.00000 1.00000
  Si2 Si 0.25541 0.89552 0.29397 1.00000
  Si3 Si 0.25541 0.39845 0.10448 1.00000
  Si4 Si 0.25541 0.70603 0.60155 1.00000
  Si5 Si 0.74459 0.10448 0.70603 1.00000
  Si6 Si 0.74459 0.60155 0.89552 1.00000
  Si7 Si 0.74459 0.29397 0.39845 1.00000
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