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Cs8K4Tb3SmBr24

Alexandria ALEX

Alex-ID: agm011069156 · Space group: R-3m (#166)

Basic Information

Formula
Cs8K4Tb3SmBr24
Alex-ID
agm011069156
Elements
5
Sites
40
Space group
R-3m (#166)
Crystal system
trigonal
Volume
1,715.72
ų
Cell a
28.1063
Å
Cell b
28.1063
Å
Cell c
28.1063
Å
α angle
17.31
°
β angle
17.31
°
γ angle
17.31
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Cs8K4Tb3SmBr24
Cs
8.00 · 20.0%
K
4.00 · 10.0%
Tb
3.00 · 7.5%
Sm
1.00 · 2.5%
Br
24.00 · 60.0%

Energy & Stability

Energy above hull
0.0167
eV/atom
Formation energy
-1.8540
eV/atom
Corrected total energy
-144.1888
eV
Raw total energy
-144.1888
eV

Electronic Structure

Indirect band gap
4.2754
eV
Direct band gap
4.2754
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB3C4D8E24_7_spg166

Decomposition

Cs2KSmBr6 Cs2KTbBr6

Computed at

2025-02-13 22:11:49.551509

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: agm011069156).

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 agm011069156
data_agm011069156
_cell_length_a     28.10630
_cell_length_b     28.10630
_cell_length_c     28.10630
_cell_angle_alpha  17.31246
_cell_angle_beta   17.31246
_cell_angle_gamma  17.31246
_cell_volume       1715.72473
_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
  Cs1 Cs 0.81236 0.81236 0.81236 1.00000
  Cs2 Cs 0.06293 0.06293 0.06293 1.00000
  Cs3 Cs 0.31331 0.31331 0.31331 1.00000
  Cs4 Cs 0.56192 0.56192 0.56192 1.00000
  Cs5 Cs 0.43808 0.43808 0.43808 1.00000
  Cs6 Cs 0.68669 0.68669 0.68669 1.00000
  Cs7 Cs 0.93707 0.93707 0.93707 1.00000
  Cs8 Cs 0.18764 0.18764 0.18764 1.00000
  K1 K 0.12523 0.12523 0.12523 1.00000
  K2 K 0.37571 0.37571 0.37571 1.00000
  K3 K 0.62429 0.62429 0.62429 1.00000
  K4 K 0.87477 0.87477 0.87477 1.00000
  Tb1 Tb 0.24956 0.24956 0.24956 1.00000
  Tb2 Tb 0.50000 0.50000 0.50000 1.00000
  Tb3 Tb 0.75044 0.75044 0.75044 1.00000
  Sm1 Sm 0.00000 0.00000 0.00000 1.00000
  Br1 Br 0.79314 0.32412 0.32412 1.00000
  Br2 Br 0.04444 0.57433 0.57433 1.00000
  Br3 Br 0.29813 0.82120 0.82120 1.00000
  Br4 Br 0.54234 0.07373 0.07373 1.00000
  Br5 Br 0.92627 0.45766 0.92627 1.00000
  Br6 Br 0.17880 0.70187 0.17880 1.00000
  Br7 Br 0.42567 0.95556 0.42567 1.00000
  Br8 Br 0.67588 0.20686 0.67588 1.00000
  Br9 Br 0.32412 0.32412 0.79314 1.00000
  Br10 Br 0.57433 0.57433 0.04444 1.00000
  Br11 Br 0.82120 0.82120 0.29813 1.00000
  Br12 Br 0.07373 0.07373 0.54234 1.00000
  Br13 Br 0.45766 0.92627 0.92627 1.00000
  Br14 Br 0.70187 0.17880 0.17880 1.00000
  Br15 Br 0.95556 0.42567 0.42567 1.00000
  Br16 Br 0.20686 0.67588 0.67588 1.00000
  Br17 Br 0.32412 0.79314 0.32412 1.00000
  Br18 Br 0.57433 0.04444 0.57433 1.00000
  Br19 Br 0.82120 0.29813 0.82120 1.00000
  Br20 Br 0.07373 0.54234 0.07373 1.00000
  Br21 Br 0.92627 0.92627 0.45766 1.00000
  Br22 Br 0.17880 0.17880 0.70187 1.00000
  Br23 Br 0.42567 0.42567 0.95556 1.00000
  Br24 Br 0.67588 0.67588 0.20686 1.00000
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