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SiO2

Alexandria ALEX

Alex-ID: agm005229681 · Space group: Cmcm (#63)

Basic Information

Formula
SiO2
Alex-ID
agm005229681
Elements
2
Sites
36
Space group
Cmcm (#63)
Crystal system
orthorhombic
Volume
664.73
ų
Cell a
9.3385
Å
Cell b
9.3385
Å
Cell c
8.6250
Å
α angle
90.00
°
β angle
90.00
°
γ angle
117.90
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SiO2
Si
12.00 · 33.3%
O
24.00 · 66.7%

Energy & Stability

Energy above hull
0.0341
eV/atom
Formation energy
-3.2357
eV/atom
Corrected total energy
-300.5593
eV
Raw total energy
-283.7043
eV

Electronic Structure

Indirect band gap
5.4286
eV
Direct band gap
5.4286
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2_8678_spg63

Decomposition

SiO2

Computed at

2024-10-07 04:11:54

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: agm005229681).

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 agm005229681
data_agm005229681
_cell_length_a     9.33847
_cell_length_b     9.33847
_cell_length_c     8.62496
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  117.89979
_cell_volume       664.73157
_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 0.48536 0.83128 0.43717 1.00000
  Si2 Si 0.16872 0.51464 0.56283 1.00000
  Si3 Si 0.83128 0.48536 0.06283 1.00000
  Si4 Si 0.51464 0.16872 0.93717 1.00000
  Si5 Si 0.51464 0.16872 0.56283 1.00000
  Si6 Si 0.83128 0.48536 0.43717 1.00000
  Si7 Si 0.16872 0.51464 0.93717 1.00000
  Si8 Si 0.48536 0.83128 0.06283 1.00000
  Si9 Si 0.34181 0.34181 0.43739 1.00000
  Si10 Si 0.65819 0.65819 0.56261 1.00000
  Si11 Si 0.34181 0.34181 0.06261 1.00000
  Si12 Si 0.65819 0.65819 0.93739 1.00000
  O1 O 0.64400 0.81527 0.49807 1.00000
  O2 O 0.18473 0.35600 0.50193 1.00000
  O3 O 0.81527 0.64400 0.00193 1.00000
  O4 O 0.35600 0.18473 0.99807 1.00000
  O5 O 0.35600 0.18473 0.50193 1.00000
  O6 O 0.81527 0.64400 0.49807 1.00000
  O7 O 0.18473 0.35600 0.99807 1.00000
  O8 O 0.64400 0.81527 0.00193 1.00000
  O9 O 0.31723 0.68277 0.50000 1.00000
  O10 O 0.68277 0.31723 0.00000 1.00000
  O11 O 0.68277 0.31723 0.50000 1.00000
  O12 O 0.31723 0.68277 0.00000 1.00000
  O13 O 0.48343 0.83016 0.25000 1.00000
  O14 O 0.16984 0.51657 0.75000 1.00000
  O15 O 0.83016 0.48343 0.25000 1.00000
  O16 O 0.51657 0.16984 0.75000 1.00000
  O17 O 0.50000 0.00000 0.50000 1.00000
  O18 O 0.00000 0.50000 0.50000 1.00000
  O19 O 0.00000 0.50000 0.00000 1.00000
  O20 O 0.50000 0.00000 0.00000 1.00000
  O21 O 0.33717 0.33717 0.25000 1.00000
  O22 O 0.66283 0.66283 0.75000 1.00000
  O23 O 0.50000 0.50000 0.50000 1.00000
  O24 O 0.50000 0.50000 0.00000 1.00000
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