Navigation

HEAS Data Platform · Materials Science Database

Np8Si6H

Alexandria ALEX

Alex-ID: agm072993889 · Space group: R-3 (#148)

Basic Information

Formula
Np8Si6H
Alex-ID
agm072993889
Elements
3
Sites
15
Space group
R-3 (#148)
Crystal system
trigonal
Volume
265.82
ų
Cell a
6.6384
Å
Cell b
6.6384
Å
Cell c
6.6384
Å
α angle
74.59
°
β angle
74.59
°
γ angle
74.59
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np8Si6H
Np
8.00 · 53.3%
Si
6.00 · 40.0%
H
1.00 · 6.7%

Energy & Stability

Energy above hull
0.3006
eV/atom
Formation energy
-0.0045
eV/atom
Corrected total energy
-139.3713
eV
Raw total energy
-139.3713
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
28.8458
Total magnetisation
13.4801
μB

Additional Information

Prototype ID

AB6C8_62_spg148

Decomposition

NpSiH Np2Si NpSi

Computed at

2024-10-06 12:17:25.443330

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: agm072993889).

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 agm072993889
data_agm072993889
_cell_length_a     6.63844
_cell_length_b     6.63844
_cell_length_c     6.63844
_cell_angle_alpha  74.58609
_cell_angle_beta   74.58609
_cell_angle_gamma  74.58609
_cell_volume       265.82000
_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
  Np1 Np 0.77786 0.77786 0.77786 1.00000
  Np2 Np 0.22214 0.22214 0.22214 1.00000
  Np3 Np 0.12002 0.66502 0.91297 1.00000
  Np4 Np 0.66502 0.91297 0.12002 1.00000
  Np5 Np 0.91297 0.12002 0.66502 1.00000
  Np6 Np 0.87998 0.33498 0.08703 1.00000
  Np7 Np 0.33498 0.08703 0.87998 1.00000
  Np8 Np 0.08703 0.87998 0.33498 1.00000
  Si1 Si 0.84296 0.55193 0.41573 1.00000
  Si2 Si 0.55193 0.41573 0.84296 1.00000
  Si3 Si 0.41573 0.84296 0.55193 1.00000
  Si4 Si 0.15704 0.44807 0.58427 1.00000
  Si5 Si 0.44807 0.58427 0.15704 1.00000
  Si6 Si 0.58427 0.15704 0.44807 1.00000
  H1 H 0.00000 0.00000 0.00000 1.00000
Get direct link