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Rb4Ca(SiO3)3

Alexandria ALEX

Alex-ID: agm020778680 · Space group: Ama2 (#40)

Basic Information

Formula
Rb4Ca(SiO3)3
Alex-ID
agm020778680
Elements
4
Sites
34
Space group
Ama2 (#40)
Crystal system
orthorhombic
Volume
554.86
ų
Cell a
7.3348
Å
Cell b
7.3348
Å
Cell c
11.2755
Å
α angle
90.00
°
β angle
90.00
°
γ angle
113.84
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Rb4Ca(SiO3)3
Rb
8.00 · 23.5%
Ca
2.00 · 5.9%
Si
6.00 · 17.6%
O
18.00 · 52.9%

Energy & Stability

Energy above hull
0.0202
eV/atom
Formation energy
-2.8696
eV/atom
Corrected total energy
-231.0956
eV
Raw total energy
-218.4544
eV

Electronic Structure

Indirect band gap
4.0231
eV
Direct band gap
4.0455
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C4D9_17_spg5

Decomposition

Rb2Ca2(SiO3)3 Rb2SiO3

Computed at

2024-09-23 10:56:29.024022

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: agm020778680).

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 agm020778680
data_agm020778680
_cell_length_a     7.33482
_cell_length_b     7.33482
_cell_length_c     11.27546
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  113.83956
_cell_volume       554.85875
_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
  Rb1 Rb 0.49440 0.50560 0.50000 1.00000
  Rb2 Rb 0.49440 0.50560 0.00000 1.00000
  Rb3 Rb 0.07122 0.92878 0.50000 1.00000
  Rb4 Rb 0.07122 0.92878 0.00000 1.00000
  Rb5 Rb 0.64957 0.24202 0.25000 1.00000
  Rb6 Rb 0.75798 0.35043 0.75000 1.00000
  Rb7 Rb 0.77763 0.78983 0.25000 1.00000
  Rb8 Rb 0.21017 0.22237 0.75000 1.00000
  Ca1 Ca 0.26644 0.74855 0.25000 1.00000
  Ca2 Ca 0.25145 0.73356 0.75000 1.00000
  Si1 Si 0.98253 0.40369 0.46478 1.00000
  Si2 Si 0.59631 0.01747 0.53522 1.00000
  Si3 Si 0.59631 0.01747 0.96478 1.00000
  Si4 Si 0.98253 0.40369 0.03522 1.00000
  Si5 Si 0.17955 0.26165 0.25000 1.00000
  Si6 Si 0.73835 0.82045 0.75000 1.00000
  O1 O 0.98729 0.58761 0.38384 1.00000
  O2 O 0.41239 0.01271 0.61616 1.00000
  O3 O 0.41239 0.01271 0.88384 1.00000
  O4 O 0.98729 0.58761 0.11616 1.00000
  O5 O 0.74173 0.25827 0.50000 1.00000
  O6 O 0.74173 0.25827 0.00000 1.00000
  O7 O 0.11294 0.46258 0.58591 1.00000
  O8 O 0.53742 0.88706 0.41409 1.00000
  O9 O 0.53742 0.88706 0.08591 1.00000
  O10 O 0.11294 0.46258 0.91409 1.00000
  O11 O 0.04373 0.25158 0.37328 1.00000
  O12 O 0.74842 0.95627 0.62672 1.00000
  O13 O 0.74842 0.95627 0.87328 1.00000
  O14 O 0.04373 0.25158 0.12672 1.00000
  O15 O 0.21671 0.05733 0.25000 1.00000
  O16 O 0.94267 0.78329 0.75000 1.00000
  O17 O 0.37273 0.47351 0.25000 1.00000
  O18 O 0.52649 0.62727 0.75000 1.00000
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