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Al2Tc2Ge

Alexandria ALEX

Alex-ID: agm002907964 · Space group: I4/mmm (#139)

Basic Information

Formula
Al2Tc2Ge
Alex-ID
agm002907964
Elements
3
Sites
5
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
78.81
ų
Cell a
3.4366
Å
Cell b
3.4366
Å
Cell c
7.1020
Å
α angle
76.00
°
β angle
76.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Al2Tc2Ge
Ge
1.00 · 20.0%
Tc
2.00 · 40.0%
Al
2.00 · 40.0%

Energy & Stability

Energy above hull
0.5397
eV/atom
Formation energy
0.1004
eV/atom
Corrected total energy
-32.3386
eV
Raw total energy
-32.3386
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.9535
Total magnetisation
0.6439
μB

Additional Information

Prototype ID

AB2C2_106_spg139

Decomposition

AlTcGe Al2Tc AlTc2

Computed at

2016-12-07 05:03:32

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: agm002907964).

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 agm002907964
data_agm002907964
_cell_length_a     3.43660
_cell_length_b     3.43660
_cell_length_c     7.10202
_cell_angle_alpha  75.99861
_cell_angle_beta   75.99861
_cell_angle_gamma  90.00000
_cell_volume       78.81371
_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
  Ge1 Ge 0.00000 0.00000 0.00000 1.00000
  Tc1 Tc 0.39942 0.39942 0.20116 1.00000
  Tc2 Tc 0.60058 0.60058 0.79884 1.00000
  Al1 Al 0.75000 0.25000 0.50000 1.00000
  Al2 Al 0.25000 0.75000 0.50000 1.00000
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