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SiNi2H8Ir

Alexandria ALEX

Alex-ID: agm007734892 · Space group: P-3m1 (#164)

Basic Information

Formula
SiNi2H8Ir
Alex-ID
agm007734892
Elements
4
Sites
12
Space group
P-3m1 (#164)
Crystal system
trigonal
Volume
86.92
ų
Cell a
4.4129
Å
Cell b
4.4129
Å
Cell c
5.1541
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
SiNi2H8Ir
Si
1.00 · 8.3%
Ni
2.00 · 16.7%
H
8.00 · 66.7%
Ir
1.00 · 8.3%

Energy & Stability

Energy above hull
0.3458
eV/atom
Formation energy
0.1626
eV/atom
Corrected total energy
-49.8183
eV
Raw total energy
-49.8183
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.3145
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D8_325_spg164

Decomposition

Si2Ni3Ir SiH20 NiH Si2Ir3

Computed at

2024-02-08 01:24:43

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: agm007734892).

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 agm007734892
data_agm007734892
_cell_length_a     4.41291
_cell_length_b     4.41291
_cell_length_c     5.15413
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       86.92341
_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 0.00000 0.00000 0.50000 1.00000
  Ni1 Ni 0.66667 0.33333 0.37951 1.00000
  Ni2 Ni 0.33333 0.66667 0.62049 1.00000
  H1 H 0.79348 0.20652 0.11489 1.00000
  H2 H 0.79348 0.58696 0.11489 1.00000
  H3 H 0.41304 0.20652 0.11489 1.00000
  H4 H 0.58696 0.79348 0.88511 1.00000
  H5 H 0.33333 0.66667 0.33599 1.00000
  H6 H 0.66667 0.33333 0.66401 1.00000
  H7 H 0.20652 0.79348 0.88511 1.00000
  H8 H 0.20652 0.41304 0.88511 1.00000
  Ir1 Ir 0.00000 0.00000 0.00000 1.00000
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