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Np4USe6

Alexandria ALEX

Alex-ID: agm006059613 · Space group: R-3c (#167)

Alexandria Database API

Basic Information

Formula
Np4USe6
Alex-ID
agm006059613
Elements
3
Sites
22
Space group
R-3c (#167)
Crystal system
trigonal
Volume
545.68
ų
Cell a
8.1723
Å
Cell b
8.1723
Å
Cell c
8.1723
Å
α angle
89.29
°
β angle
89.29
°
γ angle
90.71
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np4USe6
Np
8.00 · 36.4%
U
2.00 · 9.1%
Se
12.00 · 54.5%

Energy & Stability

Energy above hull
0.1708
eV/atom
Formation energy
-0.9743
eV/atom
Corrected total energy
-189.4235
eV
Raw total energy
-189.4235
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0006
eV
DOS at Fermi level
74.3378
Total magnetisation
43.5407
μB

Additional Information

Prototype ID

AB4C6_35_spg167

Decomposition

NpUSe3 Np2Se3 Np2Se

Computed at

2023-10-08 17:13:17

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: agm006059613).

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 agm006059613
data_agm006059613
_cell_length_a     8.17233
_cell_length_b     8.17233
_cell_length_c     8.17233
_cell_angle_alpha  89.28910
_cell_angle_beta   89.28910
_cell_angle_gamma  90.71090
_cell_volume       545.67875
_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 0.36080 0.13920 0.25000 1.00000
  Np2 Np 0.86080 0.25000 0.36080 1.00000
  Np3 Np 0.25000 0.63920 0.13920 1.00000
  Np4 Np 0.25000 0.25000 0.75000 1.00000
  Np5 Np 0.75000 0.75000 0.25000 1.00000
  Np6 Np 0.75000 0.36080 0.86080 1.00000
  Np7 Np 0.13920 0.75000 0.63920 1.00000
  Np8 Np 0.63920 0.86080 0.75000 1.00000
  U1 U 0.50000 0.50000 0.50000 1.00000
  U2 U 0.00000 0.00000 0.00000 1.00000
  Se1 Se 0.67336 0.06068 0.08469 1.00000
  Se2 Se 0.08469 0.32664 0.06068 1.00000
  Se3 Se 0.58469 0.43932 0.17336 1.00000
  Se4 Se 0.93932 0.08469 0.67336 1.00000
  Se5 Se 0.56068 0.17336 0.58469 1.00000
  Se6 Se 0.17336 0.41531 0.43932 1.00000
  Se7 Se 0.82664 0.58469 0.56068 1.00000
  Se8 Se 0.43932 0.82664 0.41531 1.00000
  Se9 Se 0.06068 0.91531 0.32664 1.00000
  Se10 Se 0.41531 0.56068 0.82664 1.00000
  Se11 Se 0.91531 0.67336 0.93932 1.00000
  Se12 Se 0.32664 0.93932 0.91531 1.00000
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