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MgSi2

Alexandria ALEX

Alex-ID: agm005259091 · Space group: C2/m (#12)

Basic Information

Formula
MgSi2
Alex-ID
agm005259091
Elements
2
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
220.37
ų
Cell a
5.5299
Å
Cell b
5.5299
Å
Cell c
11.7904
Å
α angle
68.18
°
β angle
68.18
°
γ angle
41.77
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MgSi2
Mg
4.00 · 33.3%
Si
8.00 · 66.7%

Energy & Stability

Energy above hull
0.1868
eV/atom
Formation energy
0.1083
eV/atom
Corrected total energy
-48.4625
eV
Raw total energy
-48.4625
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0563
eV
DOS at Fermi level
2.9937
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2_3346_spg12

Decomposition

Mg2Si Si

Computed at

2023-04-21 16:31:41.264439

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: agm005259091).

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 agm005259091
data_agm005259091
_cell_length_a     5.52993
_cell_length_b     5.52993
_cell_length_c     11.79037
_cell_angle_alpha  68.18364
_cell_angle_beta   68.18364
_cell_angle_gamma  41.77248
_cell_volume       220.37013
_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
  Mg1 Mg 0.44005 0.44005 0.76225 1.00000
  Mg2 Mg 0.50000 0.50000 0.00000 1.00000
  Mg3 Mg 0.55995 0.55995 0.23775 1.00000
  Mg4 Mg 0.00000 0.00000 0.50000 1.00000
  Si1 Si 0.82780 0.82780 0.97300 1.00000
  Si2 Si 0.75660 0.75660 0.72586 1.00000
  Si3 Si 0.31168 0.31168 0.44659 1.00000
  Si4 Si 0.24340 0.24340 0.27414 1.00000
  Si5 Si 0.13275 0.13275 0.83192 1.00000
  Si6 Si 0.17220 0.17220 0.02700 1.00000
  Si7 Si 0.86725 0.86725 0.16808 1.00000
  Si8 Si 0.68832 0.68832 0.55341 1.00000
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