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Ac2MgGePb

Alexandria ALEX

Alex-ID: agm005000768 · Space group: P2_1/m (#11)

Alexandria Database API

Basic Information

Formula
Ac2MgGePb
Alex-ID
agm005000768
Elements
4
Sites
10
Space group
P2_1/m (#11)
Crystal system
monoclinic
Volume
323.54
ų
Cell a
4.9438
Å
Cell b
7.9754
Å
Cell c
8.2995
Å
α angle
98.62
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ac2MgGePb
Ac
4.00 · 40.0%
Mg
2.00 · 20.0%
Ge
2.00 · 20.0%
Pb
2.00 · 20.0%

Energy & Stability

Energy above hull
0.0490
eV/atom
Formation energy
-0.5202
eV/atom
Corrected total energy
-41.4761
eV
Raw total energy
-41.4761
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0010
eV
DOS at Fermi level
1.4497
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABCD2_1541_spg11

Decomposition

AcMgPb Ac5Pb4 Ac2MgGe2 Ac4Mg5Pb6

Computed at

2022-07-04 14:15:13.362603

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: agm005000768).

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 agm005000768
data_agm005000768
_cell_length_a     4.94375
_cell_length_b     7.97544
_cell_length_c     8.29953
_cell_angle_alpha  98.62086
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       323.54164
_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 0.75000 0.86126 0.56847 1.00000
  Ac2 Ac 0.75000 0.75472 0.02167 1.00000
  Ac3 Ac 0.25000 0.13874 0.43153 1.00000
  Ac4 Ac 0.25000 0.24528 0.97833 1.00000
  Mg1 Mg 0.25000 0.55690 0.65302 1.00000
  Mg2 Mg 0.75000 0.44310 0.34698 1.00000
  Ge1 Ge 0.25000 0.87796 0.80018 1.00000
  Ge2 Ge 0.75000 0.12204 0.19982 1.00000
  Pb1 Pb 0.25000 0.64239 0.28908 1.00000
  Pb2 Pb 0.75000 0.35761 0.71092 1.00000
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