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Ca4MgPb2

Alexandria ALEX

Alex-ID: agm006017980 · Space group: R-3m (#166)

Basic Information

Formula
Ca4MgPb2
Alex-ID
agm006017980
Elements
3
Sites
7
Space group
R-3m (#166)
Crystal system
trigonal
Volume
228.90
ų
Cell a
5.4666
Å
Cell b
5.4666
Å
Cell c
9.3911
Å
α angle
73.08
°
β angle
73.08
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca4MgPb2
Ca
4.00 · 57.1%
Mg
1.00 · 14.3%
Pb
2.00 · 28.6%

Energy & Stability

Energy above hull
0.0556
eV/atom
Formation energy
-0.4214
eV/atom
Corrected total energy
-19.9692
eV
Raw total energy
-19.9692
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.2621
eV
DOS at Fermi level
2.1553
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_118_spg166

Decomposition

Ca2Pb CaMg2 CaMgPb

Computed at

2023-10-13 19:19:20

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: agm006017980).

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 agm006017980
data_agm006017980
_cell_length_a     5.46658
_cell_length_b     5.46658
_cell_length_c     9.39112
_cell_angle_alpha  73.07915
_cell_angle_beta   73.07915
_cell_angle_gamma  59.99999
_cell_volume       228.90412
_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 0.87301 0.87301 0.38098 1.00000
  Ca2 Ca 0.12699 0.12699 0.61902 1.00000
  Ca3 Ca 0.62183 0.62183 0.13450 1.00000
  Ca4 Ca 0.37817 0.37817 0.86550 1.00000
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
  Pb1 Pb 0.74946 0.74946 0.75161 1.00000
  Pb2 Pb 0.25054 0.25054 0.24839 1.00000
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