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Sr3GeBr2

Alexandria ALEX

Alex-ID: agm032637372 · Space group: Fddd (#70)

Basic Information

Formula
Sr3GeBr2
Alex-ID
agm032637372
Elements
3
Sites
24
Space group
Fddd (#70)
Crystal system
orthorhombic
Volume
847.49
ų
Cell a
8.0507
Å
Cell b
8.0507
Å
Cell c
14.6237
Å
α angle
79.40
°
β angle
100.60
°
γ angle
70.60
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sr3GeBr2
Sr
12.00 · 50.0%
Ge
4.00 · 16.7%
Br
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0086
eV/atom
Formation energy
-1.3345
eV/atom
Corrected total energy
-84.1545
eV
Raw total energy
-84.1545
eV

Electronic Structure

Indirect band gap
0.2514
eV
Direct band gap
0.3748
eV
DOS at Fermi level
3.6590
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_2914_spg15

Decomposition

Sr4GeBr4 Sr2Ge

Computed at

2025-01-14 15:36:18

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: agm032637372).

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 agm032637372
data_agm032637372
_cell_length_a     8.05066
_cell_length_b     8.05066
_cell_length_c     14.62369
_cell_angle_alpha  79.40358
_cell_angle_beta   100.59642
_cell_angle_gamma  70.59623
_cell_volume       847.49452
_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
  Sr1 Sr 0.53906 0.74541 0.07009 1.00000
  Sr2 Sr 0.03083 0.18443 0.07018 1.00000
  Sr3 Sr 0.46094 0.25459 0.92991 1.00000
  Sr4 Sr 0.96917 0.81557 0.92982 1.00000
  Sr5 Sr 0.34086 0.90928 0.75014 1.00000
  Sr6 Sr 0.90928 0.34086 0.74986 1.00000
  Sr7 Sr 0.81557 0.96917 0.57018 1.00000
  Sr8 Sr 0.25459 0.46094 0.57009 1.00000
  Sr9 Sr 0.18443 0.03083 0.42982 1.00000
  Sr10 Sr 0.74541 0.53906 0.42991 1.00000
  Sr11 Sr 0.65914 0.09072 0.24986 1.00000
  Sr12 Sr 0.09072 0.65914 0.25014 1.00000
  Ge1 Ge 0.79141 0.95842 0.08226 1.00000
  Ge2 Ge 0.20859 0.04158 0.91774 1.00000
  Ge3 Ge 0.04158 0.20859 0.58226 1.00000
  Ge4 Ge 0.95842 0.79141 0.41774 1.00000
  Br1 Br 0.86993 0.38003 0.23973 1.00000
  Br2 Br 0.29812 0.45236 0.09554 1.00000
  Br3 Br 0.70188 0.54764 0.90446 1.00000
  Br4 Br 0.13007 0.61997 0.76027 1.00000
  Br5 Br 0.61997 0.13007 0.73973 1.00000
  Br6 Br 0.54764 0.70188 0.59554 1.00000
  Br7 Br 0.45236 0.29812 0.40446 1.00000
  Br8 Br 0.38003 0.86993 0.26027 1.00000
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