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CrGe9O20

Alexandria ALEX

Alex-ID: agm023919620 · Space group: C2/m (#12)

Basic Information

Formula
CrGe9O20
Alex-ID
agm023919620
Elements
3
Sites
30
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
292.91
ų
Cell a
7.3586
Å
Cell b
7.3586
Å
Cell c
6.9742
Å
α angle
86.63
°
β angle
86.63
°
γ angle
51.01
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
CrGe9O20
Cr
1.00 · 3.3%
Ge
9.00 · 30.0%
O
20.00 · 66.7%

Energy & Stability

Energy above hull
0.0140
eV/atom
Formation energy
-2.0684
eV/atom
Corrected total energy
-212.3967
eV
Raw total energy
-196.3379
eV

Electronic Structure

Indirect band gap
0.5708
eV
Direct band gap
0.7312
eV
DOS at Fermi level
-0.1331
Total magnetisation
1.9989
μB

Additional Information

Prototype ID

AB9C20_10_spg12

Decomposition

GeO2 CrO2

Computed at

2024-11-17 16:26:03.776417

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: agm023919620).

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 agm023919620
data_agm023919620
_cell_length_a     7.35858
_cell_length_b     7.35858
_cell_length_c     6.97417
_cell_angle_alpha  86.63180
_cell_angle_beta   86.63180
_cell_angle_gamma  51.01144
_cell_volume       292.90800
_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
  Cr1 Cr 0.00000 0.00000 0.50000 1.00000
  Ge1 Ge 0.00000 0.00000 0.00000 1.00000
  Ge2 Ge 0.20021 0.20021 0.29926 1.00000
  Ge3 Ge 0.39996 0.39996 0.09975 1.00000
  Ge4 Ge 0.60047 0.60047 0.39981 1.00000
  Ge5 Ge 0.20003 0.20003 0.79943 1.00000
  Ge6 Ge 0.79997 0.79997 0.20057 1.00000
  Ge7 Ge 0.39953 0.39953 0.60019 1.00000
  Ge8 Ge 0.60004 0.60004 0.90025 1.00000
  Ge9 Ge 0.79979 0.79979 0.70074 1.00000
  O1 O 0.30640 0.69360 0.50000 1.00000
  O2 O 0.09331 0.70687 0.10135 1.00000
  O3 O 0.69360 0.30640 0.50000 1.00000
  O4 O 0.33922 0.33922 0.35436 1.00000
  O5 O 0.06272 0.06272 0.24219 1.00000
  O6 O 0.85917 0.85917 0.44634 1.00000
  O7 O 0.26177 0.26177 0.04521 1.00000
  O8 O 0.46160 0.46160 0.84508 1.00000
  O9 O 0.70687 0.09331 0.10135 1.00000
  O10 O 0.50646 0.89286 0.29937 1.00000
  O11 O 0.10714 0.49354 0.70063 1.00000
  O12 O 0.29313 0.90669 0.89865 1.00000
  O13 O 0.89286 0.50646 0.29937 1.00000
  O14 O 0.49354 0.10714 0.70063 1.00000
  O15 O 0.53840 0.53840 0.15492 1.00000
  O16 O 0.14083 0.14083 0.55366 1.00000
  O17 O 0.73823 0.73823 0.95479 1.00000
  O18 O 0.93728 0.93728 0.75781 1.00000
  O19 O 0.66078 0.66078 0.64564 1.00000
  O20 O 0.90669 0.29313 0.89865 1.00000
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