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NpUN

Alexandria ALEX

Alex-ID: agm005677893 · Space group: Cm (#8)

Basic Information

Formula
NpUN
Alex-ID
agm005677893
Elements
3
Sites
3
Space group
Cm (#8)
Crystal system
monoclinic
Volume
46.06
ų
Cell a
3.3069
Å
Cell b
3.3069
Å
Cell c
4.9278
Å
α angle
80.00
°
β angle
80.00
°
γ angle
60.77
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpUN
Np
1.00 · 33.3%
U
1.00 · 33.3%
N
1.00 · 33.3%

Energy & Stability

Energy above hull
0.0896
eV/atom
Formation energy
-0.9133
eV/atom
Corrected total energy
-34.9212
eV
Raw total energy
-34.9212
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0124
eV
DOS at Fermi level
5.3479
Total magnetisation
0.0022
μB

Additional Information

Prototype ID

ABC_10800_spg8

Decomposition

NpUN

Computed at

2023-06-18 03:33:55.960906

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: agm005677893).

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 agm005677893
data_agm005677893
_cell_length_a     3.30689
_cell_length_b     3.30688
_cell_length_c     4.92784
_cell_angle_alpha  80.00230
_cell_angle_beta   80.00230
_cell_angle_gamma  60.76552
_cell_volume       46.06239
_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 0.06575 0.06575 0.76889 1.00000
  U1 U 0.65013 0.65013 0.38526 1.00000
  N1 N 0.35778 0.35778 0.07299 1.00000
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