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Be2AlCr2

Alexandria ALEX

Alex-ID: agm002911368 · Space group: I4/mmm (#139)

Basic Information

Formula
Be2AlCr2
Alex-ID
agm002911368
Elements
3
Sites
5
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
57.52
ų
Cell a
3.3991
Å
Cell b
3.3991
Å
Cell c
5.5283
Å
α angle
72.10
°
β angle
72.10
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Be2AlCr2
Cr
2.00 · 40.0%
Al
1.00 · 20.0%
Be
2.00 · 40.0%

Energy & Stability

Energy above hull
0.5466
eV/atom
Formation energy
0.3465
eV/atom
Corrected total energy
-28.7120
eV
Raw total energy
-28.7120
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.6231
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2_5_spg139

Decomposition

Al3Cr4 Al3Cr Be2Cr

Computed at

2016-11-30 19:56:08

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: agm002911368).

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 agm002911368
data_agm002911368
_cell_length_a     3.39906
_cell_length_b     3.39906
_cell_length_c     5.52834
_cell_angle_alpha  72.09611
_cell_angle_beta   72.09611
_cell_angle_gamma  90.00000
_cell_volume       57.51982
_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 0.75000 0.25000 0.50000 1.00000
  Cr2 Cr 0.25000 0.75000 0.50000 1.00000
  Al1 Al 0.00000 0.00000 0.00000 1.00000
  Be1 Be 0.40162 0.40162 0.19676 1.00000
  Be2 Be 0.59838 0.59838 0.80324 1.00000
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