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Ho2AlGa

Alexandria ALEX

Alex-ID: agm003623933 · Space group: Amm2 (#38)

Basic Information

Formula
Ho2AlGa
Alex-ID
agm003623933
Elements
3
Sites
4
Space group
Amm2 (#38)
Crystal system
orthorhombic
Volume
97.27
ų
Cell a
4.3874
Å
Cell b
4.0479
Å
Cell c
5.9002
Å
α angle
90.00
°
β angle
111.83
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho2AlGa
Ho
2.00 · 50.0%
Al
1.00 · 25.0%
Ga
1.00 · 25.0%

Energy & Stability

Energy above hull
0.0266
eV/atom
Formation energy
-0.5073
eV/atom
Corrected total energy
-17.9611
eV
Raw total energy
-17.9611
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0185
eV
DOS at Fermi level
3.2468
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2_28_spg38

Decomposition

Ho3Ga2 HoAl2

Computed at

2022-04-14 02:50:23.227220

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: agm003623933).

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 agm003623933
data_agm003623933
_cell_length_a     4.38740
_cell_length_b     4.04790
_cell_length_c     5.90022
_cell_angle_alpha  90.00000
_cell_angle_beta   111.82667
_cell_angle_gamma  90.00000
_cell_volume       97.27462
_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
  Ho1 Ho 0.80772 0.50000 0.61543 1.00000
  Ho2 Ho 0.08822 0.00000 0.17645 1.00000
  Al1 Al 0.51968 0.50000 0.03936 1.00000
  Ga1 Ga 0.36893 0.00000 0.73786 1.00000
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