Navigation

HEAS Data Platform · Materials Science Database

Pm3As2I

Alexandria ALEX

Alex-ID: agm034607902 · Space group: Fddd (#70)

Basic Information

Formula
Pm3As2I
Alex-ID
agm034607902
Elements
3
Sites
24
Space group
Fddd (#70)
Crystal system
orthorhombic
Volume
692.99
ų
Cell a
14.2709
Å
Cell b
13.6098
Å
Cell c
7.5402
Å
α angle
79.21
°
β angle
69.52
°
γ angle
31.27
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Pm3As2I
Pm
12.00 · 50.0%
As
8.00 · 33.3%
I
4.00 · 16.7%

Energy & Stability

Energy above hull
0.0207
eV/atom
Formation energy
-1.3790
eV/atom
Corrected total energy
-133.4996
eV
Raw total energy
-133.4996
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0582
eV
DOS at Fermi level
10.3067
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_36_spg70

Decomposition

Pm6As5I Pm2AsI2 Pm

Computed at

2025-04-13 12:47:17

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: agm034607902).

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 agm034607902
data_agm034607902
_cell_length_a     14.27091
_cell_length_b     13.60981
_cell_length_c     7.54022
_cell_angle_alpha  79.21011
_cell_angle_beta   69.52325
_cell_angle_gamma  31.26665
_cell_volume       692.99327
_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 0.67601 0.17130 0.79020 1.00000
  Pm2 Pm 0.17130 0.67601 0.36250 1.00000
  Pm3 Pm 0.57399 0.07870 0.45980 1.00000
  Pm4 Pm 0.07870 0.57399 0.88750 1.00000
  Pm5 Pm 0.53640 0.96360 0.96360 1.00000
  Pm6 Pm 0.96360 0.53640 0.53640 1.00000
  Pm7 Pm 0.88750 0.45980 0.07870 1.00000
  Pm8 Pm 0.45980 0.88750 0.57399 1.00000
  Pm9 Pm 0.36250 0.79020 0.17130 1.00000
  Pm10 Pm 0.79020 0.36250 0.67601 1.00000
  Pm11 Pm 0.71360 0.28640 0.28640 1.00000
  Pm12 Pm 0.28640 0.71360 0.71360 1.00000
  As1 As 0.00466 0.00466 0.49534 1.00000
  As2 As 0.41222 0.41222 0.58778 1.00000
  As3 As 0.83778 0.83778 0.66222 1.00000
  As4 As 0.24534 0.24534 0.75466 1.00000
  As5 As 0.75466 0.75466 0.24534 1.00000
  As6 As 0.66222 0.66222 0.83778 1.00000
  As7 As 0.58778 0.58778 0.41222 1.00000
  As8 As 0.49534 0.49534 0.00466 1.00000
  I1 I 0.91747 0.91747 0.08253 1.00000
  I2 I 0.33253 0.33253 0.16747 1.00000
  I3 I 0.16747 0.16747 0.33253 1.00000
  I4 I 0.08253 0.08253 0.91747 1.00000
Get direct link