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Si3N4

Alexandria ALEX

Alex-ID: agm006224924 · Space group: P6_3/m (#176)

Basic Information

Formula
Si3N4
Alex-ID
agm006224924
Elements
2
Sites
42
Space group
P6_3/m (#176)
Crystal system
hexagonal
Volume
498.31
ų
Cell a
8.3092
Å
Cell b
8.3092
Å
Cell c
8.3341
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Si3N4
Si
18.00 · 42.9%
N
24.00 · 57.1%

Energy & Stability

Energy above hull
0.2309
eV/atom
Formation energy
-1.0822
eV/atom
Corrected total energy
-333.9262
eV
Raw total energy
-333.9262
eV

Electronic Structure

Indirect band gap
2.8665
eV
Direct band gap
2.8665
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B4_2267_spg176

Decomposition

Si3N4

Computed at

2024-10-31 21:54:20

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: agm006224924).

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 agm006224924
data_agm006224924
_cell_length_a     8.30916
_cell_length_b     8.30916
_cell_length_c     8.33406
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       498.31197
_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
  Si1 Si 0.03255 0.32654 0.10287 1.00000
  Si2 Si 0.35699 0.31010 0.25000 1.00000
  Si3 Si 0.04689 0.35699 0.75000 1.00000
  Si4 Si 0.95311 0.64301 0.25000 1.00000
  Si5 Si 0.70600 0.03255 0.60287 1.00000
  Si6 Si 0.64301 0.68990 0.75000 1.00000
  Si7 Si 0.70600 0.03255 0.89713 1.00000
  Si8 Si 0.31010 0.95311 0.75000 1.00000
  Si9 Si 0.67346 0.70600 0.39713 1.00000
  Si10 Si 0.32654 0.29400 0.89713 1.00000
  Si11 Si 0.03255 0.32654 0.39713 1.00000
  Si12 Si 0.67346 0.70600 0.10287 1.00000
  Si13 Si 0.96745 0.67346 0.89713 1.00000
  Si14 Si 0.68990 0.04689 0.25000 1.00000
  Si15 Si 0.29400 0.96745 0.10287 1.00000
  Si16 Si 0.96745 0.67346 0.60287 1.00000
  Si17 Si 0.29400 0.96745 0.39713 1.00000
  Si18 Si 0.32654 0.29400 0.60287 1.00000
  N1 N 0.45687 0.97686 0.25000 1.00000
  N2 N 0.25242 0.12523 0.75000 1.00000
  N3 N 0.16519 0.37271 0.56942 1.00000
  N4 N 0.54313 0.02314 0.75000 1.00000
  N5 N 0.51999 0.54313 0.25000 1.00000
  N6 N 0.37271 0.20751 0.43058 1.00000
  N7 N 0.37271 0.20751 0.06942 1.00000
  N8 N 0.12523 0.87281 0.25000 1.00000
  N9 N 0.74758 0.87477 0.25000 1.00000
  N10 N 0.87477 0.12719 0.75000 1.00000
  N11 N 0.20751 0.83481 0.56942 1.00000
  N12 N 0.48001 0.45687 0.75000 1.00000
  N13 N 0.83481 0.62729 0.06942 1.00000
  N14 N 0.02314 0.48001 0.25000 1.00000
  N15 N 0.79249 0.16519 0.06942 1.00000
  N16 N 0.16519 0.37271 0.93058 1.00000
  N17 N 0.62729 0.79249 0.56942 1.00000
  N18 N 0.62729 0.79249 0.93058 1.00000
  N19 N 0.20751 0.83481 0.93058 1.00000
  N20 N 0.83481 0.62729 0.43058 1.00000
  N21 N 0.79249 0.16519 0.43058 1.00000
  N22 N 0.97686 0.51999 0.75000 1.00000
  N23 N 0.87281 0.74758 0.75000 1.00000
  N24 N 0.12719 0.25242 0.25000 1.00000
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