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MgCoSi2I

Alexandria ALEX

Alex-ID: agm001472963 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
MgCoSi2I
Alex-ID
agm001472963
Elements
4
Sites
5
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
136.89
ų
Cell a
4.9356
Å
Cell b
5.6194
Å
Cell c
4.9356
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
MgCoSi2I
I
1.00 · 20.0%
Si
2.00 · 40.0%
Co
1.00 · 20.0%
Mg
1.00 · 20.0%

Energy & Stability

Energy above hull
2.0028
eV/atom
Formation energy
1.3945
eV/atom
Corrected total energy
-14.1418
eV
Raw total energy
-14.1418
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0209
eV
DOS at Fermi level
4.4311
Total magnetisation
1.9823
μB

Additional Information

Prototype ID

ABCD2_2_spg123

Decomposition

Mg2Si CoSi2 MgI2 CoSi

Computed at

2016-10-06 19:56:44

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: agm001472963).

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 agm001472963
data_agm001472963
_cell_length_a     4.93564
_cell_length_b     5.61940
_cell_length_c     4.93564
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       136.89142
_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
  I1 I 0.00000 0.50000 0.00000 1.00000
  Si1 Si 0.00000 0.00000 0.50000 1.00000
  Si2 Si 0.50000 0.00000 0.00000 1.00000
  Co1 Co 0.50000 0.50000 0.50000 1.00000
  Mg1 Mg 0.00000 0.00000 0.00000 1.00000
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