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Ho2Al4IrAu3

Alexandria ALEX

Alex-ID: agm004535565 · Space group: P-4m2 (#115)

Basic Information

Formula
Ho2Al4IrAu3
Alex-ID
agm004535565
Elements
4
Sites
10
Space group
P-4m2 (#115)
Crystal system
tetragonal
Volume
191.04
ų
Cell a
4.1777
Å
Cell b
4.1777
Å
Cell c
10.9459
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho2Al4IrAu3
Ho
2.00 · 20.0%
Al
4.00 · 40.0%
Ir
1.00 · 10.0%
Au
3.00 · 30.0%

Energy & Stability

Energy above hull
0.0838
eV/atom
Formation energy
-0.7230
eV/atom
Corrected total energy
-50.0627
eV
Raw total energy
-50.0627
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0065
eV
DOS at Fermi level
4.2022
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3D4_7_spg115

Decomposition

HoAl4Au3 Ho2(Al3Ir)3 HoAu2 Al21Ir8

Computed at

2022-06-21 01:29:54.742835

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: agm004535565).

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 agm004535565
data_agm004535565
_cell_length_a     4.17771
_cell_length_b     4.17771
_cell_length_c     10.94588
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       191.04090
_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 0.50000 0.00000 0.25780 1.00000
  Ho2 Ho 0.00000 0.50000 0.74220 1.00000
  Al1 Al 0.50000 0.50000 0.00000 1.00000
  Al2 Al 0.00000 0.00000 0.00000 1.00000
  Al3 Al 0.50000 0.00000 0.62974 1.00000
  Al4 Al 0.00000 0.50000 0.37026 1.00000
  Ir1 Ir 0.50000 0.50000 0.50000 1.00000
  Au1 Au 0.00000 0.00000 0.50000 1.00000
  Au2 Au 0.50000 0.00000 0.85741 1.00000
  Au3 Au 0.00000 0.50000 0.14259 1.00000
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