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Pm2Al4GeIr3

Alexandria ALEX

Alex-ID: agm004512474 · Space group: P-4m2 (#115)

Basic Information

Formula
Pm2Al4GeIr3
Alex-ID
agm004512474
Elements
4
Sites
10
Space group
P-4m2 (#115)
Crystal system
tetragonal
Volume
188.31
ų
Cell a
4.1597
Å
Cell b
4.1597
Å
Cell c
10.8831
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm2Al4GeIr3
Pm
2.00 · 20.0%
Al
4.00 · 40.0%
Ge
1.00 · 10.0%
Ir
3.00 · 30.0%

Energy & Stability

Energy above hull
0.1351
eV/atom
Formation energy
-0.7467
eV/atom
Corrected total energy
-63.1507
eV
Raw total energy
-63.1507
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.7266
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3D4_7_spg115

Decomposition

Pm2(Al3Ir)3 PmAlIr Pm4Ge3 AlIr

Computed at

2022-06-21 01:30:23.483912

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: agm004512474).

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 agm004512474
data_agm004512474
_cell_length_a     4.15970
_cell_length_b     4.15970
_cell_length_c     10.88309
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       188.31113
_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
  Pm1 Pm 0.50000 0.00000 0.24732 1.00000
  Pm2 Pm 0.00000 0.50000 0.75268 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 0.63700 1.00000
  Al4 Al 0.00000 0.50000 0.36300 1.00000
  Ge1 Ge 0.50000 0.50000 0.50000 1.00000
  Ir1 Ir 0.00000 0.00000 0.50000 1.00000
  Ir2 Ir 0.50000 0.00000 0.86656 1.00000
  Ir3 Ir 0.00000 0.50000 0.13344 1.00000
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