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Ca8Mg4Pb

Alexandria ALEX

Alex-ID: agm097380845 · Space group: P1 (#1)

Basic Information

Formula
Ca8Mg4Pb
Alex-ID
agm097380845
Elements
3
Sites
13
Space group
P1 (#1)
Crystal system
triclinic
Volume
453.97
ų
Cell a
3.8474
Å
Cell b
11.1713
Å
Cell c
10.9537
Å
α angle
74.63
°
β angle
90.18
°
γ angle
90.08
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ca8Mg4Pb
Ca
8.00 · 61.5%
Mg
4.00 · 30.8%
Pb
1.00 · 7.7%

Energy & Stability

Energy above hull
0.1108
eV/atom
Formation energy
-0.0701
eV/atom
Corrected total energy
-27.0143
eV
Raw total energy
-27.0143
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0298
eV
DOS at Fermi level
9.7811
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB4C8_1728_spg6

Decomposition

Ca2Pb CaMg2 Ca

Computed at

2025-06-16 16:22:14

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: agm097380845).

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 agm097380845
data_agm097380845
_cell_length_a     3.84741
_cell_length_b     11.17134
_cell_length_c     10.95372
_cell_angle_alpha  74.63323
_cell_angle_beta   90.17889
_cell_angle_gamma  90.08009
_cell_volume       453.96555
_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 0.38551 0.16889 0.20283 1.00000
  Ca2 Ca 0.38606 0.56445 0.21141 1.00000
  Ca3 Ca 0.37934 0.77101 0.58819 1.00000
  Ca4 Ca 0.38712 0.06157 0.71156 1.00000
  Ca5 Ca 0.88915 0.85260 0.25834 1.00000
  Ca6 Ca 0.90096 0.30708 0.45365 1.00000
  Ca7 Ca 0.38282 0.42035 0.75270 1.00000
  Ca8 Ca 0.88487 0.73767 0.89775 1.00000
  Mg1 Mg 0.88260 0.16953 0.93159 1.00000
  Mg2 Mg 0.88231 0.41532 0.03084 1.00000
  Mg3 Mg 0.87531 0.58103 0.48133 1.00000
  Mg4 Mg 0.87814 0.01749 0.46728 1.00000
  Pb1 Pb 0.38583 0.93302 0.01252 1.00000
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