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Na2NpAlS5

Alexandria ALEX

Alex-ID: agm005159316 · Space group: Cmc2_1 (#36)

Basic Information

Formula
Na2NpAlS5
Alex-ID
agm005159316
Elements
4
Sites
18
Space group
Cmc2_1 (#36)
Crystal system
orthorhombic
Volume
437.58
ų
Cell a
3.9034
Å
Cell b
8.6544
Å
Cell c
13.2957
Å
α angle
90.00
°
β angle
90.00
°
γ angle
103.03
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Na2NpAlS5
Na
4.00 · 22.2%
Np
2.00 · 11.1%
Al
2.00 · 11.1%
S
10.00 · 55.6%

Energy & Stability

Energy above hull
0.1029
eV/atom
Formation energy
-1.4768
eV/atom
Corrected total energy
-106.5064
eV
Raw total energy
-99.8718
eV

Electronic Structure

Indirect band gap
0.0161
eV
Direct band gap
0.0161
eV
DOS at Fermi level
9.2043
Total magnetisation
3.9961
μB

Additional Information

Prototype ID

ABC2D5_280_spg36

Decomposition

Na2NpS3 NpS3 NaAlS2

Computed at

2023-01-16 09:41:05.788434

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: agm005159316).

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 agm005159316
data_agm005159316
_cell_length_a     3.90341
_cell_length_b     8.65442
_cell_length_c     13.29571
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  103.03320
_cell_volume       437.58195
_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
  Na1 Na 0.89266 0.78533 0.83787 1.00000
  Na2 Na 0.08531 0.17061 0.66424 1.00000
  Na3 Na 0.10734 0.21467 0.33787 1.00000
  Na4 Na 0.91469 0.82939 0.16424 1.00000
  Np1 Np 0.77604 0.55209 0.53346 1.00000
  Np2 Np 0.22396 0.44791 0.03346 1.00000
  Al1 Al 0.57297 0.14593 0.91948 1.00000
  Al2 Al 0.42703 0.85407 0.41948 1.00000
  S1 S 0.36802 0.73603 0.01000 1.00000
  S2 S 0.70939 0.41877 0.89569 1.00000
  S3 S 0.50589 0.01177 0.78126 1.00000
  S4 S 0.27801 0.55603 0.66179 1.00000
  S5 S 0.93768 0.87537 0.52017 1.00000
  S6 S 0.63198 0.26397 0.51000 1.00000
  S7 S 0.29061 0.58123 0.39569 1.00000
  S8 S 0.49411 0.98823 0.28126 1.00000
  S9 S 0.72199 0.44397 0.16179 1.00000
  S10 S 0.06232 0.12463 0.02017 1.00000
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