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La2MgSe4

Alexandria ALEX

Alex-ID: agm005226541 · Space group: P-1 (#2)

Basic Information

Formula
La2MgSe4
Alex-ID
agm005226541
Elements
3
Sites
28
Space group
P-1 (#2)
Crystal system
triclinic
Volume
803.04
ų
Cell a
6.1047
Å
Cell b
11.4630
Å
Cell c
14.3732
Å
α angle
114.46
°
β angle
112.91
°
γ angle
95.45
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La2MgSe4
La
8.00 · 28.6%
Mg
4.00 · 14.3%
Se
16.00 · 57.1%

Energy & Stability

Energy above hull
0.1300
eV/atom
Formation energy
-1.6903
eV/atom
Corrected total energy
-148.9773
eV
Raw total energy
-148.9773
eV

Electronic Structure

Indirect band gap
0.9063
eV
Direct band gap
1.1194
eV
DOS at Fermi level
-0.1145
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C4_2455_spg2

Decomposition

La2Se3 MgSe

Computed at

2023-05-12 09:22:42.446124

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: agm005226541).

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 agm005226541
data_agm005226541
_cell_length_a     6.10466
_cell_length_b     11.46303
_cell_length_c     14.37324
_cell_angle_alpha  114.45713
_cell_angle_beta   112.91034
_cell_angle_gamma  95.44691
_cell_volume       803.03611
_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
  La1 La 0.89455 0.34008 0.67585 1.00000
  La2 La 0.10545 0.65992 0.32415 1.00000
  La3 La 0.76188 0.15007 0.04784 1.00000
  La4 La 0.23812 0.84993 0.95216 1.00000
  La5 La 0.57871 0.39169 0.31606 1.00000
  La6 La 0.42129 0.60831 0.68394 1.00000
  La7 La 0.61382 0.93338 0.33589 1.00000
  La8 La 0.38618 0.06662 0.66411 1.00000
  Mg1 Mg 0.84918 0.82291 0.62201 1.00000
  Mg2 Mg 0.15082 0.17709 0.37799 1.00000
  Mg3 Mg 0.73711 0.51095 0.98309 1.00000
  Mg4 Mg 0.26289 0.48905 0.01691 1.00000
  Se1 Se 0.84270 0.30068 0.87359 1.00000
  Se2 Se 0.15730 0.69932 0.12641 1.00000
  Se3 Se 0.72516 0.84843 0.89954 1.00000
  Se4 Se 0.27484 0.15157 0.10046 1.00000
  Se5 Se 0.62974 0.21849 0.41885 1.00000
  Se6 Se 0.37026 0.78151 0.58115 1.00000
  Se7 Se 0.66429 0.68810 0.38716 1.00000
  Se8 Se 0.33571 0.31190 0.61284 1.00000
  Se9 Se 0.83978 0.05236 0.59903 1.00000
  Se10 Se 0.16022 0.94764 0.40097 1.00000
  Se11 Se 0.89948 0.61013 0.66224 1.00000
  Se12 Se 0.10052 0.38987 0.33776 1.00000
  Se13 Se 0.74336 0.98977 0.17297 1.00000
  Se14 Se 0.25664 0.01023 0.82703 1.00000
  Se15 Se 0.64973 0.43188 0.11558 1.00000
  Se16 Se 0.35027 0.56812 0.88442 1.00000
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