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KCa2SnBr8

Alexandria ALEX

Alex-ID: agm004907615 · Space group: P2/m (#10)

Basic Information

Formula
KCa2SnBr8
Alex-ID
agm004907615
Elements
4
Sites
12
Space group
P2/m (#10)
Crystal system
monoclinic
Volume
426.02
ų
Cell a
7.0257
Å
Cell b
6.7127
Å
Cell c
9.0336
Å
α angle
89.97
°
β angle
89.99
°
γ angle
89.48
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KCa2SnBr8
K
1.00 · 8.3%
Ca
2.00 · 16.7%
Sn
1.00 · 8.3%
Br
8.00 · 66.7%

Energy & Stability

Energy above hull
0.0904
eV/atom
Formation energy
-1.4677
eV/atom
Corrected total energy
-40.1043
eV
Raw total energy
-40.1043
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.5577
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D8_356_spg65

Decomposition

Ca2SnBr6 K2SnBr6 CaBr2

Computed at

2023-01-01 22:25:53.006725

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: agm004907615).

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 agm004907615
data_agm004907615
_cell_length_a     7.02573
_cell_length_b     6.71273
_cell_length_c     9.03361
_cell_angle_alpha  89.97296
_cell_angle_beta   89.99003
_cell_angle_gamma  89.47661
_cell_volume       426.02389
_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
  K1 K 0.00000 0.00000 0.50000 1.00000
  Ca1 Ca 0.50000 0.49995 0.74820 1.00000
  Ca2 Ca 0.50000 0.50005 0.25180 1.00000
  Sn1 Sn 0.00000 0.00000 0.00000 1.00000
  Br1 Br 0.15832 0.75517 0.21961 1.00000
  Br2 Br 0.66372 0.74424 0.99992 1.00000
  Br3 Br 0.84141 0.24458 0.21952 1.00000
  Br4 Br 0.84168 0.24483 0.78039 1.00000
  Br5 Br 0.33628 0.25576 0.00008 1.00000
  Br6 Br 0.15859 0.75542 0.78048 1.00000
  Br7 Br 0.63673 0.72564 0.49992 1.00000
  Br8 Br 0.36327 0.27436 0.50008 1.00000
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