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Si5As

Alexandria ALEX

Alex-ID: agm005456864 · Space group: P4/mmm (#123)

Basic Information

Formula
Si5As
Alex-ID
agm005456864
Elements
2
Sites
6
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
92.89
ų
Cell a
2.7641
Å
Cell b
2.7641
Å
Cell c
12.1582
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Si5As
Si
5.00 · 83.3%
As
1.00 · 16.7%

Energy & Stability

Energy above hull
0.5833
eV/atom
Formation energy
0.5523
eV/atom
Corrected total energy
-28.4509
eV
Raw total energy
-28.4509
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.8959
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB5_6_spg123

Decomposition

SiAs Si

Computed at

2023-03-22 22:07:19.247837

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: agm005456864).

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 agm005456864
data_agm005456864
_cell_length_a     2.76406
_cell_length_b     2.76406
_cell_length_c     12.15820
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       92.88866
_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
  Si1 Si 0.00000 0.00000 0.81037 1.00000
  Si2 Si 0.00000 0.00000 0.18963 1.00000
  Si3 Si 0.50000 0.50000 0.65513 1.00000
  Si4 Si 0.50000 0.50000 0.34487 1.00000
  Si5 Si 0.00000 0.00000 0.50000 1.00000
  As1 As 0.50000 0.50000 0.00000 1.00000
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