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Mg3C4

Alexandria ALEX

Alex-ID: agm005487807 · Space group: I4/mmm (#139)

Basic Information

Formula
Mg3C4
Alex-ID
agm005487807
Elements
2
Sites
7
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
70.92
ų
Cell a
10.5412
Å
Cell b
10.5412
Å
Cell c
10.5412
Å
α angle
165.75
°
β angle
165.75
°
γ angle
20.20
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg3C4
Mg
3.00 · 42.9%
C
4.00 · 57.1%

Energy & Stability

Energy above hull
1.6389
eV/atom
Formation energy
1.6389
eV/atom
Corrected total energy
-30.2070
eV
Raw total energy
-30.2070
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0493
eV
DOS at Fermi level
1.7588
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B4_122_spg139

Decomposition

C Mg

Computed at

2023-03-17 22:57:24.587507

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: agm005487807).

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 agm005487807
data_agm005487807
_cell_length_a     10.54122
_cell_length_b     10.54122
_cell_length_c     10.54122
_cell_angle_alpha  165.75424
_cell_angle_beta   165.75424
_cell_angle_gamma  20.19914
_cell_volume       70.92146
_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 0.00000 0.00000 0.00000 1.00000
  Mg2 Mg 0.68665 0.68665 0.00000 1.00000
  Mg3 Mg 0.31335 0.31335 0.00000 1.00000
  C1 C 0.89199 0.89199 0.00000 1.00000
  C2 C 0.10801 0.10801 0.00000 1.00000
  C3 C 0.58083 0.58083 0.00000 1.00000
  C4 C 0.41917 0.41917 0.00000 1.00000
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