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HEAS Data Platform · Materials Science Database

Mg4Si3

Alexandria ALEX

Alex-ID: agm005223134 · Space group: P1 (#1)

Basic Information

Formula
Mg4Si3
Alex-ID
agm005223134
Elements
2
Sites
14
Space group
P1 (#1)
Crystal system
triclinic
Volume
267.13
ų
Cell a
5.3382
Å
Cell b
6.7422
Å
Cell c
7.9879
Å
α angle
68.87
°
β angle
86.57
°
γ angle
85.32
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg4Si3
Mg
8.00 · 57.1%
Si
6.00 · 42.9%

Energy & Stability

Energy above hull
0.1645
eV/atom
Formation energy
0.0299
eV/atom
Corrected total energy
-44.8767
eV
Raw total energy
-44.8767
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1993
eV
DOS at Fermi level
3.9627
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B4_271_spg1

Decomposition

Mg2Si Si

Computed at

2023-05-06 17:14:50.759652

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: agm005223134).

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 agm005223134
data_agm005223134
_cell_length_a     5.33819
_cell_length_b     6.74217
_cell_length_c     7.98786
_cell_angle_alpha  68.87227
_cell_angle_beta   86.56542
_cell_angle_gamma  85.32152
_cell_volume       267.12815
_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 0.77688 0.26650 0.25995 1.00000
  Mg2 Mg 0.58305 0.06903 0.01178 1.00000
  Mg3 Mg 0.17229 0.41723 0.43964 1.00000
  Mg4 Mg 0.62848 0.43837 0.61803 1.00000
  Mg5 Mg 0.57079 0.64811 0.89716 1.00000
  Mg6 Mg 0.35188 0.93219 0.42065 1.00000
  Mg7 Mg 0.87455 0.00901 0.65921 1.00000
  Mg8 Mg 0.07890 0.76338 0.07034 1.00000
  Si1 Si 0.59065 0.66291 0.24766 1.00000
  Si2 Si 0.27060 0.33818 0.12384 1.00000
  Si3 Si 0.05124 0.22701 0.90959 1.00000
  Si4 Si 0.87845 0.80299 0.40662 1.00000
  Si5 Si 0.05743 0.60189 0.71547 1.00000
  Si6 Si 0.36463 0.07331 0.71997 1.00000
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