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Ca3AlGe2

Alexandria ALEX

Alex-ID: agm005734751 · Space group: Pnma (#62)

Basic Information

Formula
Ca3AlGe2
Alex-ID
agm005734751
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
629.73
ų
Cell a
4.3184
Å
Cell b
12.2751
Å
Cell c
11.8796
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca3AlGe2
Ca
12.00 · 50.0%
Al
4.00 · 16.7%
Ge
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0378
eV/atom
Formation energy
-0.5340
eV/atom
Corrected total energy
-88.7615
eV
Raw total energy
-88.7615
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0044
eV
DOS at Fermi level
14.3839
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_315_spg62

Decomposition

Ca3(AlGe)2 Ca5Ge3 CaGe

Computed at

2023-08-07 04:17:01.868253

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: agm005734751).

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 agm005734751
data_agm005734751
_cell_length_a     4.31843
_cell_length_b     12.27510
_cell_length_c     11.87959
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       629.72645
_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 0.25000 0.38599 0.06662 1.00000
  Ca2 Ca 0.75000 0.61401 0.93338 1.00000
  Ca3 Ca 0.75000 0.88599 0.43338 1.00000
  Ca4 Ca 0.25000 0.11401 0.56662 1.00000
  Ca5 Ca 0.25000 0.69579 0.19307 1.00000
  Ca6 Ca 0.75000 0.30421 0.80693 1.00000
  Ca7 Ca 0.75000 0.19579 0.30693 1.00000
  Ca8 Ca 0.25000 0.80421 0.69307 1.00000
  Ca9 Ca 0.25000 0.44167 0.37156 1.00000
  Ca10 Ca 0.75000 0.55833 0.62844 1.00000
  Ca11 Ca 0.75000 0.94167 0.12844 1.00000
  Ca12 Ca 0.25000 0.05833 0.87156 1.00000
  Al1 Al 0.25000 0.14003 0.13755 1.00000
  Al2 Al 0.75000 0.85997 0.86245 1.00000
  Al3 Al 0.75000 0.64003 0.36245 1.00000
  Al4 Al 0.25000 0.35997 0.63755 1.00000
  Ge1 Ge 0.25000 0.68158 0.47124 1.00000
  Ge2 Ge 0.75000 0.31842 0.52876 1.00000
  Ge3 Ge 0.75000 0.18158 0.02876 1.00000
  Ge4 Ge 0.25000 0.81842 0.97124 1.00000
  Ge5 Ge 0.25000 0.01209 0.30686 1.00000
  Ge6 Ge 0.75000 0.98791 0.69314 1.00000
  Ge7 Ge 0.75000 0.51209 0.19314 1.00000
  Ge8 Ge 0.25000 0.48791 0.80686 1.00000
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