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Ac2Ho2Ge2C

Alexandria ALEX

Alex-ID: agm024095793 · Space group: I4/mmm (#139)

Alexandria Database API

Basic Information

Formula
Ac2Ho2Ge2C
Alex-ID
agm024095793
Elements
4
Sites
7
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
191.05
ų
Cell a
8.9796
Å
Cell b
8.9796
Å
Cell c
8.9796
Å
α angle
149.04
°
β angle
149.04
°
γ angle
44.35
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac2Ho2Ge2C
Ac
2.00 · 28.6%
Ho
2.00 · 28.6%
Ge
2.00 · 28.6%
C
1.00 · 14.3%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.6684
eV/atom
Corrected total energy
-40.5113
eV
Raw total energy
-40.5113
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0884
eV
DOS at Fermi level
0.6761
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D2_1_spg139

Decomposition

Ac2Ho2Ge2C

Computed at

2025-04-17 16:23:38

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: agm024095793).

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 agm024095793
data_agm024095793
_cell_length_a     8.97959
_cell_length_b     8.97959
_cell_length_c     8.97959
_cell_angle_alpha  149.04078
_cell_angle_beta   149.04078
_cell_angle_gamma  44.35128
_cell_volume       191.04564
_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
  Ac1 Ac 0.16753 0.16753 0.00000 1.00000
  Ac2 Ac 0.83247 0.83247 0.00000 1.00000
  Ho1 Ho 0.50000 0.00000 0.50000 1.00000
  Ho2 Ho 0.00000 0.50000 0.50000 1.00000
  Ge1 Ge 0.37358 0.37358 0.00000 1.00000
  Ge2 Ge 0.62642 0.62642 0.00000 1.00000
  C1 C 0.00000 0.00000 0.00000 1.00000
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