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PrAl4Ir2Os

Alexandria ALEX

Alex-ID: agm004806091 · Space group: R-3m (#166)

Basic Information

Formula
PrAl4Ir2Os
Alex-ID
agm004806091
Elements
4
Sites
8
Space group
R-3m (#166)
Crystal system
trigonal
Volume
138.62
ų
Cell a
4.2473
Å
Cell b
4.2473
Å
Cell c
9.2053
Å
α angle
76.66
°
β angle
76.66
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
PrAl4Ir2Os
Pr
1.00 · 12.5%
Al
4.00 · 50.0%
Ir
2.00 · 25.0%
Os
1.00 · 12.5%

Energy & Stability

Energy above hull
0.0774
eV/atom
Formation energy
-0.6831
eV/atom
Corrected total energy
-54.1829
eV
Raw total energy
-54.1829
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.7814
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D4_337_spg166

Decomposition

PrAlIr Pr2(Al3Ir)3 Al4Ir3Os Al2Os

Computed at

2022-07-12 08:01:26.505447

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: agm004806091).

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 agm004806091
data_agm004806091
_cell_length_a     4.24735
_cell_length_b     4.24735
_cell_length_c     9.20525
_cell_angle_alpha  76.66158
_cell_angle_beta   76.66158
_cell_angle_gamma  60.00000
_cell_volume       138.61735
_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
  Pr1 Pr 0.00000 0.00000 0.00000 1.00000
  Al1 Al 0.40691 0.40691 0.77926 1.00000
  Al2 Al 0.86617 0.86617 0.40150 1.00000
  Al3 Al 0.13383 0.13383 0.59850 1.00000
  Al4 Al 0.59309 0.59309 0.22074 1.00000
  Ir1 Ir 0.76435 0.76435 0.70696 1.00000
  Ir2 Ir 0.23565 0.23565 0.29304 1.00000
  Os1 Os 0.50000 0.50000 0.50000 1.00000
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