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Al2Ge2Sb

Alexandria ALEX

Alex-ID: agm002907945 · Space group: I4/mmm (#139)

Basic Information

Formula
Al2Ge2Sb
Alex-ID
agm002907945
Elements
3
Sites
5
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
102.52
ų
Cell a
3.9940
Å
Cell b
3.9940
Å
Cell c
7.0197
Å
α angle
73.47
°
β angle
73.47
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Al2Ge2Sb
Sb
1.00 · 20.0%
Ge
2.00 · 40.0%
Al
2.00 · 40.0%

Energy & Stability

Energy above hull
0.2659
eV/atom
Formation energy
0.2002
eV/atom
Corrected total energy
-19.8471
eV
Raw total energy
-19.8471
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.3387
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2_5_spg139

Decomposition

Al Ge AlSb

Computed at

2017-06-23 12:58:14

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: agm002907945).

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 agm002907945
data_agm002907945
_cell_length_a     3.99404
_cell_length_b     3.99404
_cell_length_c     7.01968
_cell_angle_alpha  73.47172
_cell_angle_beta   73.47172
_cell_angle_gamma  90.00000
_cell_volume       102.51733
_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
  Sb1 Sb 0.00000 0.00000 0.00000 1.00000
  Ge1 Ge 0.75000 0.25000 0.50000 1.00000
  Ge2 Ge 0.25000 0.75000 0.50000 1.00000
  Al1 Al 0.39695 0.39695 0.20609 1.00000
  Al2 Al 0.60305 0.60305 0.79391 1.00000
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