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Ba4Si2Te8PbI2

Alexandria ALEX

Alex-ID: agm010768145 · Space group: Pmn2_1 (#31)

Basic Information

Formula
Ba4Si2Te8PbI2
Alex-ID
agm010768145
Elements
5
Sites
34
Space group
Pmn2_1 (#31)
Crystal system
orthorhombic
Volume
1,340.43
ų
Cell a
9.8420
Å
Cell b
10.1398
Å
Cell c
13.4318
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ba4Si2Te8PbI2
Ba
8.00 · 23.5%
Si
4.00 · 11.8%
Te
16.00 · 47.1%
Pb
2.00 · 5.9%
I
4.00 · 11.8%

Energy & Stability

Energy above hull
0.0032
eV/atom
Formation energy
-1.0201
eV/atom
Corrected total energy
-135.6407
eV
Raw total energy
-135.6407
eV

Electronic Structure

Indirect band gap
1.1689
eV
Direct band gap
1.2416
eV
DOS at Fermi level
-0.0146
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D4E8_8_spg31

Decomposition

SiTe2 Ba2SiTe4 BaI2 TePb

Computed at

2025-02-06 15:07:20

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: agm010768145).

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 agm010768145
data_agm010768145
_cell_length_a     9.84198
_cell_length_b     10.13975
_cell_length_c     13.43184
_cell_angle_alpha  90.00184
_cell_angle_beta   90.00002
_cell_angle_gamma  90.00062
_cell_volume       1340.43457
_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
  Ba1 Ba 0.39647 0.24056 0.92023 1.00000
  Ba2 Ba 0.08031 0.75743 0.42957 1.00000
  Ba3 Ba 0.58035 0.74259 0.57045 1.00000
  Ba4 Ba 0.89633 0.25942 0.07979 1.00000
  Ba5 Ba 0.58038 0.25741 0.57048 1.00000
  Ba6 Ba 0.89646 0.74054 0.07980 1.00000
  Ba7 Ba 0.39634 0.75950 0.92020 1.00000
  Ba8 Ba 0.08041 0.24265 0.42960 1.00000
  Si1 Si 0.69507 0.50005 0.85670 1.00000
  Si2 Si 0.81033 0.49996 0.34609 1.00000
  Si3 Si 0.31028 0.99998 0.65391 1.00000
  Si4 Si 0.19501 0.00004 0.14325 1.00000
  Te1 Te 0.62717 0.50006 0.03839 1.00000
  Te2 Te 0.85321 0.50003 0.53632 1.00000
  Te3 Te 0.35310 0.00001 0.46374 1.00000
  Te4 Te 0.12708 0.00004 0.96155 1.00000
  Te5 Te 0.48093 0.50007 0.75320 1.00000
  Te6 Te 0.03109 0.49993 0.24928 1.00000
  Te7 Te 0.53110 0.99999 0.75073 1.00000
  Te8 Te 0.98090 0.00003 0.24679 1.00000
  Te9 Te 0.82809 0.29312 0.81276 1.00000
  Te10 Te 0.71017 0.72379 0.31727 1.00000
  Te11 Te 0.20995 0.77624 0.68281 1.00000
  Te12 Te 0.32827 0.20682 0.18719 1.00000
  Te13 Te 0.21001 0.22374 0.68284 1.00000
  Te14 Te 0.32807 0.79314 0.18714 1.00000
  Te15 Te 0.82823 0.70686 0.81277 1.00000
  Te16 Te 0.70996 0.27623 0.31724 1.00000
  Pb1 Pb 0.03532 0.49989 0.74537 1.00000
  Pb2 Pb 0.53523 0.99992 0.25453 1.00000
  I1 I 0.15158 0.49995 0.97446 1.00000
  I2 I 0.35121 0.50002 0.45662 1.00000
  I3 I 0.85120 0.00008 0.54346 1.00000
  I4 I 0.65168 0.99992 0.02551 1.00000
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