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Ca2GeS4

Alexandria ALEX

Alex-ID: agm003236563 · Space group: Pnma (#62)

Basic Information

Formula
Ca2GeS4
Alex-ID
agm003236563
Elements
3
Sites
28
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
725.39
ų
Cell a
6.3597
Å
Cell b
8.2355
Å
Cell c
13.8498
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca2GeS4
Ca
8.00 · 28.6%
Ge
4.00 · 14.3%
S
16.00 · 57.1%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-1.7802
eV/atom
Corrected total energy
-150.3711
eV
Raw total energy
-139.7557
eV

Electronic Structure

Indirect band gap
2.5318
eV
Direct band gap
2.5318
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_613_spg62

Decomposition

Ca2GeS4

Computed at

2021-12-14 22:21:42.361740

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: agm003236563).

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 agm003236563
data_agm003236563
_cell_length_a     6.35968
_cell_length_b     8.23554
_cell_length_c     13.84981
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       725.38969
_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 0.00000 0.00000 0.00000 1.00000
  Ca2 Ca 0.50000 0.00000 0.50000 1.00000
  Ca3 Ca 0.00000 0.50000 0.00000 1.00000
  Ca4 Ca 0.50000 0.50000 0.50000 1.00000
  Ca5 Ca 0.48582 0.75000 0.22683 1.00000
  Ca6 Ca 0.98582 0.25000 0.27317 1.00000
  Ca7 Ca 0.51418 0.25000 0.77317 1.00000
  Ca8 Ca 0.01418 0.75000 0.72683 1.00000
  Ge1 Ge 0.90822 0.75000 0.40661 1.00000
  Ge2 Ge 0.40822 0.25000 0.09339 1.00000
  Ge3 Ge 0.09178 0.25000 0.59339 1.00000
  Ge4 Ge 0.59178 0.75000 0.90661 1.00000
  S1 S 0.77128 0.75000 0.55684 1.00000
  S2 S 0.27128 0.25000 0.94316 1.00000
  S3 S 0.22872 0.25000 0.44316 1.00000
  S4 S 0.72872 0.75000 0.05684 1.00000
  S5 S 0.25729 0.75000 0.40595 1.00000
  S6 S 0.75729 0.25000 0.09405 1.00000
  S7 S 0.74271 0.25000 0.59405 1.00000
  S8 S 0.24271 0.75000 0.90595 1.00000
  S9 S 0.75863 0.96327 0.33204 1.00000
  S10 S 0.25863 0.03673 0.16796 1.00000
  S11 S 0.24137 0.46327 0.66796 1.00000
  S12 S 0.74137 0.53673 0.83204 1.00000
  S13 S 0.24137 0.03673 0.66796 1.00000
  S14 S 0.74137 0.96327 0.83204 1.00000
  S15 S 0.75863 0.53673 0.33204 1.00000
  S16 S 0.25863 0.46327 0.16796 1.00000
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