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La2Hf2Si2N

Alexandria ALEX

Alex-ID: agm024135429 · Space group: I4/mmm (#139)

Alexandria Database API

Basic Information

Formula
La2Hf2Si2N
Alex-ID
agm024135429
Elements
4
Sites
7
Space group
I4/mmm (#139)
Crystal system
tetragonal
Volume
152.96
ų
Cell a
8.6354
Å
Cell b
8.6354
Å
Cell c
8.6354
Å
α angle
150.80
°
β angle
150.80
°
γ angle
41.78
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La2Hf2Si2N
La
2.00 · 28.6%
Hf
2.00 · 28.6%
Si
2.00 · 28.6%
N
1.00 · 14.3%

Energy & Stability

Energy above hull
0.0171
eV/atom
Formation energy
-1.0433
eV/atom
Corrected total energy
-55.8633
eV
Raw total energy
-55.8633
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
6.0400
Total magnetisation
0.9001
μB

Additional Information

Prototype ID

AB2C2D2_132_spg139

Decomposition

Hf3SiN La5Si3 HfN LaSi

Computed at

2025-05-24 15:55:40

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: agm024135429).

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 agm024135429
data_agm024135429
_cell_length_a     8.63542
_cell_length_b     8.63542
_cell_length_c     8.63542
_cell_angle_alpha  150.79526
_cell_angle_beta   150.79526
_cell_angle_gamma  41.77529
_cell_volume       152.95563
_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 0.16988 0.16988 0.00000 1.00000
  La2 La 0.83012 0.83012 0.00000 1.00000
  Hf1 Hf 0.50000 0.00000 0.50000 1.00000
  Hf2 Hf 0.00000 0.50000 0.50000 1.00000
  Si1 Si 0.38055 0.38055 0.00000 1.00000
  Si2 Si 0.61945 0.61945 0.00000 1.00000
  N1 N 0.00000 0.00000 0.00000 1.00000
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