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Ca3GeBr2

Alexandria ALEX

Alex-ID: agm005671776 · Space group: Pnma (#62)

Basic Information

Formula
Ca3GeBr2
Alex-ID
agm005671776
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
702.52
ų
Cell a
6.0952
Å
Cell b
8.8344
Å
Cell c
13.0466
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca3GeBr2
Ca
12.00 · 50.0%
Ge
4.00 · 16.7%
Br
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0872
eV/atom
Formation energy
-1.2439
eV/atom
Corrected total energy
-85.7302
eV
Raw total energy
-85.7302
eV

Electronic Structure

Indirect band gap
0.3749
eV
Direct band gap
0.3749
eV
DOS at Fermi level
-0.0160
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_35_spg14

Decomposition

Ca2Ge CaBr2

Computed at

2023-08-07 08:07:46.495286

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: agm005671776).

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 agm005671776
data_agm005671776
_cell_length_a     6.09515
_cell_length_b     8.83438
_cell_length_c     13.04656
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00216
_cell_volume       702.51619
_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
  Ca1 Ca 0.25010 0.60049 0.57422 1.00000
  Ca2 Ca 0.25010 0.10049 0.92578 1.00000
  Ca3 Ca 0.25008 0.66694 0.93767 1.00000
  Ca4 Ca 0.25008 0.16694 0.56233 1.00000
  Ca5 Ca 0.24984 0.62496 0.24811 1.00000
  Ca6 Ca 0.24984 0.12496 0.25189 1.00000
  Ca7 Ca 0.75016 0.87504 0.74811 1.00000
  Ca8 Ca 0.75016 0.37504 0.75189 1.00000
  Ca9 Ca 0.74992 0.83306 0.43767 1.00000
  Ca10 Ca 0.74992 0.33306 0.06233 1.00000
  Ca11 Ca 0.74990 0.89951 0.07422 1.00000
  Ca12 Ca 0.74990 0.39951 0.42578 1.00000
  Ge1 Ge 0.24992 0.87660 0.09822 1.00000
  Ge2 Ge 0.24992 0.37660 0.40178 1.00000
  Ge3 Ge 0.75008 0.62340 0.59822 1.00000
  Ge4 Ge 0.75008 0.12340 0.90178 1.00000
  Br1 Br 0.25011 0.87320 0.74462 1.00000
  Br2 Br 0.25011 0.37320 0.75538 1.00000
  Br3 Br 0.24992 0.88859 0.42491 1.00000
  Br4 Br 0.24992 0.38859 0.07509 1.00000
  Br5 Br 0.75008 0.61141 0.92491 1.00000
  Br6 Br 0.75008 0.11141 0.57509 1.00000
  Br7 Br 0.74989 0.62680 0.24462 1.00000
  Br8 Br 0.74989 0.12680 0.25538 1.00000
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