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Ac2CuGeS5

Alexandria ALEX

Alex-ID: agm005149379 · Space group: Cmc2_1 (#36)

Basic Information

Formula
Ac2CuGeS5
Alex-ID
agm005149379
Elements
4
Sites
18
Space group
Cmc2_1 (#36)
Crystal system
orthorhombic
Volume
424.68
ų
Cell a
4.2418
Å
Cell b
8.9092
Å
Cell c
11.5701
Å
α angle
90.00
°
β angle
90.00
°
γ angle
103.77
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac2CuGeS5
Ac
4.00 · 22.2%
Cu
2.00 · 11.1%
Ge
2.00 · 11.1%
S
10.00 · 55.6%

Energy & Stability

Energy above hull
0.0798
eV/atom
Formation energy
-1.6633
eV/atom
Corrected total energy
-105.2024
eV
Raw total energy
-98.5678
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.7537
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D5_198_spg36

Decomposition

Cu3GeS4 AcCuS2 Ac6Ge3S14 Cu

Computed at

2023-01-19 13:53:18.303120

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: agm005149379).

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 agm005149379
data_agm005149379
_cell_length_a     4.24182
_cell_length_b     8.90921
_cell_length_c     11.57014
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  103.77196
_cell_volume       424.67941
_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
  Ac1 Ac 0.86836 0.73672 0.80084 1.00000
  Ac2 Ac 0.11615 0.23229 0.68051 1.00000
  Ac3 Ac 0.13164 0.26328 0.30084 1.00000
  Ac4 Ac 0.88385 0.76771 0.18051 1.00000
  Cu1 Cu 0.75764 0.51527 0.58295 1.00000
  Cu2 Cu 0.24236 0.48473 0.08295 1.00000
  Ge1 Ge 0.57433 0.14866 0.95638 1.00000
  Ge2 Ge 0.42567 0.85134 0.45638 1.00000
  S1 S 0.35845 0.71690 0.99369 1.00000
  S2 S 0.68437 0.36875 0.84045 1.00000
  S3 S 0.49984 0.99969 0.78053 1.00000
  S4 S 0.29425 0.58850 0.65035 1.00000
  S5 S 0.95449 0.90899 0.53828 1.00000
  S6 S 0.64155 0.28310 0.49369 1.00000
  S7 S 0.31563 0.63125 0.34045 1.00000
  S8 S 0.50016 0.00031 0.28053 1.00000
  S9 S 0.70575 0.41150 0.15035 1.00000
  S10 S 0.04551 0.09101 0.03828 1.00000
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