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Mg2AlCu2

Alexandria ALEX

Alex-ID: agm002932151 · Space group: I4/mmm (#139)

Basic Information

Formula
Mg2AlCu2
Alex-ID
agm002932151
Elements
3
Sites
5
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
89.02
ų
Cell a
3.8736
Å
Cell b
3.8736
Å
Cell c
6.5346
Å
α angle
72.76
°
β angle
72.76
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg2AlCu2
Mg
2.00 · 40.0%
Al
1.00 · 20.0%
Cu
2.00 · 40.0%

Energy & Stability

Energy above hull
0.4245
eV/atom
Formation energy
0.2507
eV/atom
Corrected total energy
-14.0012
eV
Raw total energy
-14.0012
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
1.9848
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2_5_spg139

Decomposition

Mg3(AlCu2)2 Mg

Computed at

2017-06-15 05:57:55

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: agm002932151).

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 agm002932151
data_agm002932151
_cell_length_a     3.87364
_cell_length_b     3.87364
_cell_length_c     6.53456
_cell_angle_alpha  72.75872
_cell_angle_beta   72.75872
_cell_angle_gamma  90.00000
_cell_volume       89.02169
_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
  Mg1 Mg 0.75000 0.25000 0.50000 1.00000
  Mg2 Mg 0.25000 0.75000 0.50000 1.00000
  Al1 Al 0.00000 0.00000 0.00000 1.00000
  Cu1 Cu 0.40274 0.40274 0.19453 1.00000
  Cu2 Cu 0.59726 0.59726 0.80547 1.00000
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