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La2Fe2Si2H

Alexandria ALEX

Alex-ID: agm073033503 · Space group: P-4m2 (#115)

Alexandria Database API

Basic Information

Formula
La2Fe2Si2H
Alex-ID
agm073033503
Elements
4
Sites
7
Space group
P-4m2 (#115)
Crystal system
tetragonal
Volume
124.06
ų
Cell a
4.0709
Å
Cell b
4.0709
Å
Cell c
7.4862
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La2Fe2Si2H
La
2.00 · 28.6%
Fe
2.00 · 28.6%
Si
2.00 · 28.6%
H
1.00 · 14.3%

Energy & Stability

Energy above hull
0.0188
eV/atom
Formation energy
-0.6078
eV/atom
Corrected total energy
-45.1204
eV
Raw total energy
-45.1204
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
4.2450
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D2_7_spg25

Decomposition

La(FeSi)2 LaFeSi LaH2

Computed at

2024-10-29 03:21:59

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: agm073033503).

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 agm073033503
data_agm073033503
_cell_length_a     4.07087
_cell_length_b     4.07087
_cell_length_c     7.48622
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       124.06142
_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 0.00000 0.50000 0.31390 1.00000
  La2 La 0.50000 0.00000 0.68610 1.00000
  Fe1 Fe 0.00000 0.00000 0.00000 1.00000
  Fe2 Fe 0.50000 0.50000 0.00000 1.00000
  Si1 Si 0.00000 0.50000 0.85696 1.00000
  Si2 Si 0.50000 0.00000 0.14304 1.00000
  H1 H 0.00000 0.00000 0.50000 1.00000
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