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Ac4Pm2Pb3O2

Alexandria ALEX

Alex-ID: agm004489736 · Space group: I4/mmm (#139)

Alexandria Database API

Basic Information

Formula
Ac4Pm2Pb3O2
Alex-ID
agm004489736
Elements
4
Sites
11
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
349.68
ų
Cell a
5.1008
Å
Cell b
5.1008
Å
Cell c
13.9154
Å
α angle
100.56
°
β angle
100.56
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac4Pm2Pb3O2
Ac
4.00 · 36.4%
Pm
2.00 · 18.2%
Pb
3.00 · 27.3%
O
2.00 · 18.2%

Energy & Stability

Energy above hull
0.1599
eV/atom
Formation energy
-1.3690
eV/atom
Corrected total energy
-62.0352
eV
Raw total energy
-60.6306
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0299
eV
DOS at Fermi level
6.7345
Total magnetisation
-0.0001
μB

Additional Information

Prototype ID

A2B2C3D4_39_spg139

Decomposition

Ac5Pb3O Pm5Pb3 Pm2O3 Ac

Computed at

2022-06-18 05:37:59.873926

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: agm004489736).

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 agm004489736
data_agm004489736
_cell_length_a     5.10082
_cell_length_b     5.10082
_cell_length_c     13.91544
_cell_angle_alpha  100.56082
_cell_angle_beta   100.56082
_cell_angle_gamma  90.00000
_cell_volume       349.68370
_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
  Ac1 Ac 0.41454 0.91454 0.82908 1.00000
  Ac2 Ac 0.91454 0.41454 0.82908 1.00000
  Ac3 Ac 0.08546 0.58546 0.17092 1.00000
  Ac4 Ac 0.58546 0.08546 0.17092 1.00000
  Pm1 Pm 0.30321 0.30320 0.60641 1.00000
  Pm2 Pm 0.69679 0.69680 0.39359 1.00000
  Pb1 Pb 0.00000 0.00000 0.00000 1.00000
  Pb2 Pb 0.18214 0.18214 0.36428 1.00000
  Pb3 Pb 0.81786 0.81786 0.63572 1.00000
  O1 O 0.39178 0.39178 0.78357 1.00000
  O2 O 0.60822 0.60822 0.21643 1.00000
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