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MgSi2

Alexandria ALEX

Alex-ID: agm005232889 · Space group: C2/m (#12)

Basic Information

Formula
MgSi2
Alex-ID
agm005232889
Elements
2
Sites
12
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
207.34
ų
Cell a
5.2405
Å
Cell b
5.2405
Å
Cell c
9.9268
Å
α angle
85.31
°
β angle
85.31
°
γ angle
49.79
°

Composition

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

Energy & Stability

Energy above hull
0.1894
eV/atom
Formation energy
0.1109
eV/atom
Corrected total energy
-48.4320
eV
Raw total energy
-48.4320
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0117
eV
DOS at Fermi level
2.6706
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2_3332_spg12

Decomposition

Mg2Si Si

Computed at

2023-04-21 16:18:35.423854

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: agm005232889).

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 agm005232889
data_agm005232889
_cell_length_a     5.24050
_cell_length_b     5.24050
_cell_length_c     9.92682
_cell_angle_alpha  85.30996
_cell_angle_beta   85.30996
_cell_angle_gamma  49.78917
_cell_volume       207.34458
_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 0.12323 0.12323 0.09372 1.00000
  Mg2 Mg 0.87677 0.87677 0.90628 1.00000
  Mg3 Mg 0.75706 0.75706 0.61409 1.00000
  Mg4 Mg 0.24294 0.24294 0.38591 1.00000
  Si1 Si 0.58496 0.58496 0.89850 1.00000
  Si2 Si 0.41504 0.41504 0.10150 1.00000
  Si3 Si 0.54829 0.54829 0.29554 1.00000
  Si4 Si 0.05845 0.05845 0.61866 1.00000
  Si5 Si 0.79525 0.79525 0.19146 1.00000
  Si6 Si 0.20475 0.20475 0.80854 1.00000
  Si7 Si 0.45171 0.45171 0.70446 1.00000
  Si8 Si 0.94155 0.94155 0.38134 1.00000
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