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Ca8(AlSi3)3

Alexandria ALEX

Alex-ID: agm008201146 · Space group: C2/m (#12)

Basic Information

Formula
Ca8(AlSi3)3
Alex-ID
agm008201146
Elements
3
Sites
20
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
432.40
ų
Cell a
5.7922
Å
Cell b
5.7922
Å
Cell c
19.4155
Å
α angle
86.51
°
β angle
86.51
°
γ angle
41.70
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca8(AlSi3)3
Ca
8.00 · 40.0%
Al
3.00 · 15.0%
Si
9.00 · 45.0%

Energy & Stability

Energy above hull
0.0786
eV/atom
Formation energy
-0.3796
eV/atom
Corrected total energy
-83.6527
eV
Raw total energy
-83.6527
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
8.4170
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B8C9_3_spg12

Decomposition

CaAlSi Ca(AlSi)2 CaSi

Computed at

2024-04-06 15:35:11

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: agm008201146).

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 agm008201146
data_agm008201146
_cell_length_a     5.79221
_cell_length_b     5.79221
_cell_length_c     19.41548
_cell_angle_alpha  86.51074
_cell_angle_beta   86.51074
_cell_angle_gamma  41.69961
_cell_volume       432.39692
_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
  Ca1 Ca 0.53312 0.53312 0.32140 1.00000
  Ca2 Ca 0.28562 0.28562 0.07092 1.00000
  Ca3 Ca 0.03113 0.03113 0.82441 1.00000
  Ca4 Ca 0.78194 0.78194 0.57292 1.00000
  Ca5 Ca 0.21806 0.21806 0.42708 1.00000
  Ca6 Ca 0.96887 0.96887 0.17559 1.00000
  Ca7 Ca 0.71438 0.71438 0.92908 1.00000
  Ca8 Ca 0.46688 0.46688 0.67860 1.00000
  Al1 Al 0.74824 0.74824 0.75071 1.00000
  Al2 Al 0.50000 0.50000 0.50000 1.00000
  Al3 Al 0.25176 0.25176 0.24929 1.00000
  Si1 Si 0.82128 0.82128 0.32128 1.00000
  Si2 Si 0.57173 0.57173 0.07113 1.00000
  Si3 Si 0.31882 0.31882 0.82376 1.00000
  Si4 Si 0.06970 0.06970 0.57223 1.00000
  Si5 Si 0.93030 0.93030 0.42777 1.00000
  Si6 Si 0.68118 0.68118 0.17624 1.00000
  Si7 Si 0.42827 0.42827 0.92887 1.00000
  Si8 Si 0.17872 0.17872 0.67872 1.00000
  Si9 Si 0.00000 0.00000 0.00000 1.00000
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