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HEAS Data Platform · Materials Science Database

UIr4

Alexandria ALEX

Alex-ID: agm008041982 · Space group: I4/m (#87)

Basic Information

Formula
UIr4
Alex-ID
agm008041982
Elements
2
Sites
5
Space group
I4/m (#87)
Crystal system
tetragonal
Volume
82.06
ų
Cell a
4.9282
Å
Cell b
4.9282
Å
Cell c
4.9282
Å
α angle
99.84
°
β angle
99.84
°
γ angle
131.15
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
UIr4
U
1.00 · 20.0%
Ir
4.00 · 80.0%

Energy & Stability

Energy above hull
0.2479
eV/atom
Formation energy
-0.2584
eV/atom
Corrected total energy
-48.0240
eV
Raw total energy
-48.0240
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0049
eV
DOS at Fermi level
5.9335
Total magnetisation
0.0002
μB

Additional Information

Prototype ID

AB4_1669_spg97

Decomposition

UIr3 Ir

Computed at

2024-03-17 05:13:50.885277

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: agm008041982).

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 agm008041982
data_agm008041982
_cell_length_a     4.92818
_cell_length_b     4.92818
_cell_length_c     4.92818
_cell_angle_alpha  99.84329
_cell_angle_beta   99.84329
_cell_angle_gamma  131.15452
_cell_volume       82.05553
_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
  U1 U 0.00000 0.00000 0.00000 1.00000
  Ir1 Ir 0.80604 0.39620 0.20224 1.00000
  Ir2 Ir 0.39620 0.19396 0.59016 1.00000
  Ir3 Ir 0.60380 0.80604 0.40984 1.00000
  Ir4 Ir 0.19396 0.60380 0.79776 1.00000
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