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Pm4IrAu

Alexandria ALEX

Alex-ID: agm005870002 · Space group: Pnma (#62)

Basic Information

Formula
Pm4IrAu
Alex-ID
agm005870002
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
661.57
ų
Cell a
4.9613
Å
Cell b
7.2606
Å
Cell c
18.3657
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm4IrAu
Pm
16.00 · 66.7%
Ir
4.00 · 16.7%
Au
4.00 · 16.7%

Energy & Stability

Energy above hull
0.0862
eV/atom
Formation energy
-0.5106
eV/atom
Corrected total energy
-136.8176
eV
Raw total energy
-136.8176
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0297
eV
DOS at Fermi level
22.0261
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4_370_spg62

Decomposition

Pm5IrAu2 Pm2Au Pm5Ir2

Computed at

2023-07-31 03:44:51.331847

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: agm005870002).

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 agm005870002
data_agm005870002
_cell_length_a     4.96129
_cell_length_b     7.26056
_cell_length_c     18.36572
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       661.56505
_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 0.75000 0.89407 0.65199 1.00000
  Pm2 Pm 0.25000 0.10593 0.34801 1.00000
  Pm3 Pm 0.25000 0.60593 0.15199 1.00000
  Pm4 Pm 0.75000 0.39407 0.84801 1.00000
  Pm5 Pm 0.75000 0.87108 0.44231 1.00000
  Pm6 Pm 0.25000 0.12892 0.55769 1.00000
  Pm7 Pm 0.25000 0.62892 0.94231 1.00000
  Pm8 Pm 0.75000 0.37108 0.05769 1.00000
  Pm9 Pm 0.75000 0.95184 0.92532 1.00000
  Pm10 Pm 0.25000 0.04816 0.07468 1.00000
  Pm11 Pm 0.25000 0.54816 0.42532 1.00000
  Pm12 Pm 0.75000 0.45184 0.57468 1.00000
  Pm13 Pm 0.75000 0.96841 0.22339 1.00000
  Pm14 Pm 0.25000 0.03159 0.77661 1.00000
  Pm15 Pm 0.25000 0.53159 0.72339 1.00000
  Pm16 Pm 0.75000 0.46841 0.27661 1.00000
  Ir1 Ir 0.75000 0.75430 0.79316 1.00000
  Ir2 Ir 0.25000 0.24570 0.20684 1.00000
  Ir3 Ir 0.25000 0.74570 0.29316 1.00000
  Ir4 Ir 0.75000 0.25430 0.70684 1.00000
  Au1 Au 0.75000 0.28320 0.42734 1.00000
  Au2 Au 0.25000 0.71680 0.57266 1.00000
  Au3 Au 0.25000 0.21680 0.92734 1.00000
  Au4 Au 0.75000 0.78320 0.07266 1.00000
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