Navigation

HEAS Data Platform · Materials Science Database

Ca6Si6O19

Alexandria ALEX

Alex-ID: agm003239786 · Space group: P-1 (#2)

Basic Information

Formula
Ca6Si6O19
Alex-ID
agm003239786
Elements
3
Sites
31
Space group
P-1 (#2)
Crystal system
triclinic
Volume
456.21
ų
Cell a
7.0594
Å
Cell b
7.4430
Å
Cell c
8.8773
Å
α angle
102.02
°
β angle
90.18
°
γ angle
90.03
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca6Si6O19
Ca
6.00 · 19.4%
Si
6.00 · 19.4%
O
19.00 · 61.3%

Energy & Stability

Energy above hull
0.0953
eV/atom
Formation energy
-3.2594
eV/atom
Corrected total energy
-239.7964
eV
Raw total energy
-226.4528
eV

Electronic Structure

Indirect band gap
0.5358
eV
Direct band gap
0.5601
eV
DOS at Fermi level
-0.4137
Total magnetisation
2.0438
μB

Additional Information

Prototype ID

A6B6C19_3_spg2

Decomposition

CaO10 CaSiO3 SiO2

Computed at

2021-12-16 11:04:25.348930

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: agm003239786).

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 agm003239786
data_agm003239786
_cell_length_a     7.05941
_cell_length_b     7.44300
_cell_length_c     8.87733
_cell_angle_alpha  102.01927
_cell_angle_beta   90.17666
_cell_angle_gamma  90.03159
_cell_volume       456.21477
_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 0.00000 0.50000 0.50000 1.00000
  Ca2 Ca 0.00000 0.00000 0.50000 1.00000
  Ca3 Ca 0.83787 0.84320 0.87212 1.00000
  Ca4 Ca 0.16213 0.15680 0.12788 1.00000
  Ca5 Ca 0.83954 0.34290 0.86658 1.00000
  Ca6 Ca 0.16046 0.65710 0.13342 1.00000
  Si1 Si 0.26970 0.78119 0.78807 1.00000
  Si2 Si 0.73030 0.21881 0.21193 1.00000
  Si3 Si 0.26995 0.36219 0.78729 1.00000
  Si4 Si 0.73005 0.63781 0.21271 1.00000
  Si5 Si 0.55541 0.04513 0.68124 1.00000
  Si6 Si 0.44459 0.95487 0.31876 1.00000
  O1 O 0.50000 0.00000 0.50000 1.00000
  O2 O 0.34511 0.57236 0.79034 1.00000
  O3 O 0.65489 0.42764 0.20966 1.00000
  O4 O 0.12079 0.28870 0.64881 1.00000
  O5 O 0.87921 0.71130 0.35119 1.00000
  O6 O 0.12125 0.78520 0.64900 1.00000
  O7 O 0.87875 0.21480 0.35100 1.00000
  O8 O 0.47279 0.88943 0.77071 1.00000
  O9 O 0.52721 0.11057 0.22929 1.00000
  O10 O 0.47329 0.24600 0.76989 1.00000
  O11 O 0.52671 0.75400 0.23011 1.00000
  O12 O 0.16716 0.36027 0.95174 1.00000
  O13 O 0.83284 0.63973 0.04826 1.00000
  O14 O 0.16791 0.86462 0.95293 1.00000
  O15 O 0.83209 0.13538 0.04707 1.00000
  O16 O 0.78149 0.05144 0.70503 1.00000
  O17 O 0.21851 0.94856 0.29497 1.00000
  O18 O 0.80378 0.55579 0.71122 1.00000
  O19 O 0.19622 0.44421 0.28878 1.00000
Get direct link