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Ca4Mg2Pb5

Alexandria ALEX

Alex-ID: agm005661272 · Space group: Ibam (#72)

Basic Information

Formula
Ca4Mg2Pb5
Alex-ID
agm005661272
Elements
3
Sites
22
Space group
Ibam (#72)
Crystal system
orthorhombic
Volume
659.19
ų
Cell a
6.5360
Å
Cell b
10.1144
Å
Cell c
11.6484
Å
α angle
115.73
°
β angle
106.29
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca4Mg2Pb5
Ca
8.00 · 36.4%
Mg
4.00 · 18.2%
Pb
10.00 · 45.5%

Energy & Stability

Energy above hull
0.0754
eV/atom
Formation energy
-0.3684
eV/atom
Corrected total energy
-67.5831
eV
Raw total energy
-67.5831
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0399
eV
DOS at Fermi level
8.8672
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C5_660_spg72

Decomposition

CaPb3 CaMgPb CaPb

Computed at

2023-06-22 02:25:12.470329

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: agm005661272).

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 agm005661272
data_agm005661272
_cell_length_a     6.53602
_cell_length_b     10.11442
_cell_length_c     11.64841
_cell_angle_alpha  115.73151
_cell_angle_beta   106.29328
_cell_angle_gamma  90.00002
_cell_volume       659.19428
_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
  Ca1 Ca 0.93976 0.19020 0.87952 1.00000
  Ca2 Ca 0.06024 0.80980 0.12048 1.00000
  Ca3 Ca 0.56024 0.31068 0.12048 1.00000
  Ca4 Ca 0.43976 0.68932 0.87952 1.00000
  Ca5 Ca 0.63810 0.02936 0.27621 1.00000
  Ca6 Ca 0.36190 0.97064 0.72379 1.00000
  Ca7 Ca 0.86190 0.75315 0.72379 1.00000
  Ca8 Ca 0.13810 0.24685 0.27621 1.00000
  Mg1 Mg 0.94940 0.69940 0.39880 1.00000
  Mg2 Mg 0.55060 0.30060 0.60120 1.00000
  Mg3 Mg 0.05060 0.30060 0.60120 1.00000
  Mg4 Mg 0.44940 0.69940 0.39880 1.00000
  Pb1 Pb 0.25000 0.00000 0.00000 1.00000
  Pb2 Pb 0.75000 0.00000 0.00000 1.00000
  Pb3 Pb 0.57377 0.64647 0.14753 1.00000
  Pb4 Pb 0.42623 0.35353 0.85247 1.00000
  Pb5 Pb 0.92623 0.49894 0.85247 1.00000
  Pb6 Pb 0.07377 0.50106 0.14753 1.00000
  Pb7 Pb 0.77756 0.98351 0.55512 1.00000
  Pb8 Pb 0.22244 0.01649 0.44488 1.00000
  Pb9 Pb 0.27756 0.57162 0.55512 1.00000
  Pb10 Pb 0.72244 0.42838 0.44488 1.00000
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