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HEAS Data Platform · Materials Science Database

Ba5Mg19Si12

Alexandria ALEX

Alex-ID: agm008603718 · Space group: P-62m (#189)

Basic Information

Formula
Ba5Mg19Si12
Alex-ID
agm008603718
Elements
3
Sites
36
Space group
P-62m (#189)
Crystal system
hexagonal
Volume
840.78
ų
Cell a
14.7133
Å
Cell b
14.7133
Å
Cell c
4.4847
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ba5Mg19Si12
Ba
5.00 · 13.9%
Mg
19.00 · 52.8%
Si
12.00 · 33.3%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.2759
eV/atom
Corrected total energy
-114.9190
eV
Raw total energy
-114.9190
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1783
eV
DOS at Fermi level
6.4997
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A5B12C19_1_spg189

Decomposition

Ba5Mg19Si12

Computed at

2025-02-27 11:25:56

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: agm008603718).

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 agm008603718
data_agm008603718
_cell_length_a     14.71327
_cell_length_b     14.71327
_cell_length_c     4.48472
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       840.78442
_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
  Ba1 Ba 0.18889 0.18889 0.50000 1.00000
  Ba2 Ba 0.81111 0.00000 0.50000 1.00000
  Ba3 Ba 0.00000 0.81111 0.50000 1.00000
  Ba4 Ba 0.33333 0.66667 0.00000 1.00000
  Ba5 Ba 0.66667 0.33333 0.00000 1.00000
  Mg1 Mg 0.55724 0.55724 0.00000 1.00000
  Mg2 Mg 0.44276 0.00000 0.00000 1.00000
  Mg3 Mg 0.00000 0.44276 0.00000 1.00000
  Mg4 Mg 0.71866 0.71866 0.50000 1.00000
  Mg5 Mg 0.28134 0.00000 0.50000 1.00000
  Mg6 Mg 0.00000 0.28134 0.50000 1.00000
  Mg7 Mg 0.17565 0.37551 0.00000 1.00000
  Mg8 Mg 0.62449 0.80014 0.00000 1.00000
  Mg9 Mg 0.19986 0.82435 0.00000 1.00000
  Mg10 Mg 0.80014 0.62449 0.00000 1.00000
  Mg11 Mg 0.82435 0.19986 0.00000 1.00000
  Mg12 Mg 0.37551 0.17565 0.00000 1.00000
  Mg13 Mg 0.36079 0.48435 0.50000 1.00000
  Mg14 Mg 0.51565 0.87644 0.50000 1.00000
  Mg15 Mg 0.12356 0.63921 0.50000 1.00000
  Mg16 Mg 0.87644 0.51565 0.50000 1.00000
  Mg17 Mg 0.63921 0.12356 0.50000 1.00000
  Mg18 Mg 0.48435 0.36079 0.50000 1.00000
  Mg19 Mg 0.00000 0.00000 0.00000 1.00000
  Si1 Si 0.82305 0.82305 0.00000 1.00000
  Si2 Si 0.17695 0.00000 0.00000 1.00000
  Si3 Si 0.00000 0.17695 0.00000 1.00000
  Si4 Si 0.16705 0.47848 0.50000 1.00000
  Si5 Si 0.52152 0.68857 0.50000 1.00000
  Si6 Si 0.31143 0.83295 0.50000 1.00000
  Si7 Si 0.68857 0.52152 0.50000 1.00000
  Si8 Si 0.83295 0.31143 0.50000 1.00000
  Si9 Si 0.47848 0.16705 0.50000 1.00000
  Si10 Si 0.37043 0.37043 0.00000 1.00000
  Si11 Si 0.62957 0.00000 0.00000 1.00000
  Si12 Si 0.00000 0.62957 0.00000 1.00000
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