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CaGeAsO5

Alexandria ALEX

Alex-ID: agm005063545 · Space group: C2/c (#15)

Basic Information

Formula
CaGeAsO5
Alex-ID
agm005063545
Elements
4
Sites
16
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
212.22
ų
Cell a
5.7759
Å
Cell b
5.7759
Å
Cell c
7.1524
Å
α angle
103.14
°
β angle
103.14
°
γ angle
106.11
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
CaGeAsO5
Ca
2.00 · 12.5%
Ge
2.00 · 12.5%
As
2.00 · 12.5%
O
10.00 · 62.5%

Energy & Stability

Energy above hull
0.1977
eV/atom
Formation energy
-2.1830
eV/atom
Corrected total energy
-107.0479
eV
Raw total energy
-100.0250
eV

Electronic Structure

Indirect band gap
0.5647
eV
Direct band gap
0.8465
eV
DOS at Fermi level
-0.1059
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD5_28_spg15

Decomposition

Ca2As2O7 Ca3(AsO4)2 Ca2Ge7O16 As2O3

Computed at

2022-07-12 23:01:44.382395

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: agm005063545).

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 agm005063545
data_agm005063545
_cell_length_a     5.77594
_cell_length_b     5.77594
_cell_length_c     7.15237
_cell_angle_alpha  103.14112
_cell_angle_beta   103.14112
_cell_angle_gamma  106.10724
_cell_volume       212.21525
_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 0.32145 0.67855 0.25000 1.00000
  Ca2 Ca 0.67855 0.32145 0.75000 1.00000
  Ge1 Ge 0.00000 0.00000 0.50000 1.00000
  Ge2 Ge 0.00000 0.00000 0.00000 1.00000
  As1 As 0.67015 0.32985 0.25000 1.00000
  As2 As 0.32985 0.67015 0.75000 1.00000
  O1 O 0.06755 0.93245 0.25000 1.00000
  O2 O 0.93245 0.06755 0.75000 1.00000
  O3 O 0.89133 0.33617 0.11935 1.00000
  O4 O 0.10867 0.66383 0.88065 1.00000
  O5 O 0.66383 0.10867 0.38065 1.00000
  O6 O 0.33617 0.89133 0.61935 1.00000
  O7 O 0.72674 0.61663 0.42689 1.00000
  O8 O 0.27326 0.38337 0.57311 1.00000
  O9 O 0.38337 0.27326 0.07311 1.00000
  O10 O 0.61663 0.72674 0.92689 1.00000
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