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AlCr3O9

Alexandria ALEX

Alex-ID: agm005998928 · Space group: Cc (#9)

Basic Information

Formula
AlCr3O9
Alex-ID
agm005998928
Elements
3
Sites
26
Space group
Cc (#9)
Crystal system
monoclinic
Volume
386.89
ų
Cell a
6.8809
Å
Cell b
7.7432
Å
Cell c
8.8709
Å
α angle
73.68
°
β angle
67.18
°
γ angle
63.62
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
AlCr3O9
Al
2.00 · 7.7%
Cr
6.00 · 23.1%
O
18.00 · 69.2%

Energy & Stability

Energy above hull
0.1380
eV/atom
Formation energy
-1.9754
eV/atom
Corrected total energy
-205.8390
eV
Raw total energy
-181.1198
eV

Electronic Structure

Indirect band gap
0.8331
eV
Direct band gap
0.8459
eV
DOS at Fermi level
-0.1681
Total magnetisation
6.0000
μB

Additional Information

Prototype ID

AB3C9_33_spg9

Decomposition

CrO2 Al2Cr3O12

Computed at

2023-08-10 06:50:26.617634

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: agm005998928).

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 agm005998928
data_agm005998928
_cell_length_a     6.88087
_cell_length_b     7.74322
_cell_length_c     8.87093
_cell_angle_alpha  73.68276
_cell_angle_beta   67.18031
_cell_angle_gamma  63.62042
_cell_volume       386.89348
_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
  Al1 Al 0.01484 0.49856 0.99878 1.00000
  Al2 Al 0.48782 0.99856 0.49878 1.00000
  Cr1 Cr 0.79905 0.56365 0.67631 1.00000
  Cr2 Cr 0.96098 0.06365 0.17631 1.00000
  Cr3 Cr 0.02049 0.93936 0.81820 1.00000
  Cr4 Cr 0.22194 0.43936 0.31820 1.00000
  Cr5 Cr 0.53898 0.24447 0.73678 1.00000
  Cr6 Cr 0.47977 0.74447 0.23678 1.00000
  O1 O 0.32551 0.19711 0.35953 1.00000
  O2 O 0.11785 0.69711 0.85953 1.00000
  O3 O 0.31350 0.32066 0.90145 1.00000
  O4 O 0.46439 0.82066 0.40145 1.00000
  O5 O 0.19212 0.03376 0.66298 1.00000
  O6 O 0.11114 0.53376 0.16298 1.00000
  O7 O 0.72903 0.69478 0.08672 1.00000
  O8 O 0.48947 0.19478 0.58672 1.00000
  O9 O 0.77699 0.98606 0.33973 1.00000
  O10 O 0.89722 0.48606 0.83973 1.00000
  O11 O 0.61513 0.79478 0.65126 1.00000
  O12 O 0.93883 0.29478 0.15126 1.00000
  O13 O 0.43946 0.52317 0.28863 1.00000
  O14 O 0.74874 0.02317 0.78863 1.00000
  O15 O 0.68394 0.40865 0.65703 1.00000
  O16 O 0.25037 0.90865 0.15703 1.00000
  O17 O 0.90881 0.05249 0.00044 1.00000
  O18 O 0.03826 0.55249 0.50044 1.00000
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