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La3SiSe2

Alexandria ALEX

Alex-ID: agm014096657 · Space group: Pnma (#62)

Alexandria Database API

Basic Information

Formula
La3SiSe2
Alex-ID
agm014096657
Elements
3
Sites
24
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
697.36
ų
Cell a
6.1445
Å
Cell b
8.6983
Å
Cell c
13.0478
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La3SiSe2
La
12.00 · 50.0%
Si
4.00 · 16.7%
Se
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0089
eV/atom
Formation energy
-1.6106
eV/atom
Corrected total energy
-147.4013
eV
Raw total energy
-147.4012
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0152
eV
DOS at Fermi level
8.3460
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3_1851_spg62

Decomposition

La3SiSe2

Computed at

2025-04-15 09:57:40

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: agm014096657).

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 agm014096657
data_agm014096657
_cell_length_a     6.14447
_cell_length_b     8.69826
_cell_length_c     13.04783
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       697.35747
_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 0.75000 0.62122 0.08150 1.00000
  La2 La 0.75000 0.12122 0.41850 1.00000
  La3 La 0.75000 0.63006 0.42080 1.00000
  La4 La 0.75000 0.13006 0.07920 1.00000
  La5 La 0.75000 0.62509 0.75057 1.00000
  La6 La 0.75000 0.12509 0.74943 1.00000
  La7 La 0.25000 0.87491 0.25057 1.00000
  La8 La 0.25000 0.37491 0.24943 1.00000
  La9 La 0.25000 0.86994 0.92080 1.00000
  La10 La 0.25000 0.36994 0.57920 1.00000
  La11 La 0.25000 0.87878 0.58150 1.00000
  La12 La 0.25000 0.37878 0.91850 1.00000
  Si1 Si 0.75000 0.87074 0.58448 1.00000
  Si2 Si 0.75000 0.37074 0.91552 1.00000
  Si3 Si 0.25000 0.62926 0.08448 1.00000
  Si4 Si 0.25000 0.12926 0.41552 1.00000
  Se1 Se 0.75000 0.87549 0.24895 1.00000
  Se2 Se 0.75000 0.37549 0.25105 1.00000
  Se3 Se 0.75000 0.87655 0.91670 1.00000
  Se4 Se 0.75000 0.37655 0.58330 1.00000
  Se5 Se 0.25000 0.62345 0.41670 1.00000
  Se6 Se 0.25000 0.12345 0.08330 1.00000
  Se7 Se 0.25000 0.62451 0.74895 1.00000
  Se8 Se 0.25000 0.12451 0.75105 1.00000
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