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K2NpInSe5

Alexandria ALEX

Alex-ID: agm005157386 · Space group: Cmc2_1 (#36)

Basic Information

Formula
K2NpInSe5
Alex-ID
agm005157386
Elements
4
Sites
18
Space group
Cmc2_1 (#36)
Crystal system
orthorhombic
Volume
582.32
ų
Cell a
4.2043
Å
Cell b
9.8603
Å
Cell c
14.3772
Å
α angle
90.00
°
β angle
90.00
°
γ angle
102.31
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2NpInSe5
K
4.00 · 22.2%
Np
2.00 · 11.1%
In
2.00 · 11.1%
Se
10.00 · 55.6%

Energy & Stability

Energy above hull
0.0691
eV/atom
Formation energy
-0.9462
eV/atom
Corrected total energy
-87.7668
eV
Raw total energy
-87.7668
eV

Electronic Structure

Indirect band gap
0.0221
eV
Direct band gap
0.0356
eV
DOS at Fermi level
11.9265
Total magnetisation
4.0813
μB

Additional Information

Prototype ID

ABC2D5_219_spg36

Decomposition

K2NpSe3 K(NpSe3)2 KInSe2

Computed at

2023-01-08 10:32:08.701362

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: agm005157386).

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 agm005157386
data_agm005157386
_cell_length_a     4.20432
_cell_length_b     9.86028
_cell_length_c     14.37722
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  102.30963
_cell_volume       582.31558
_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
  K1 K 0.87139 0.74278 0.81894 1.00000
  K2 K 0.11021 0.22041 0.67906 1.00000
  K3 K 0.12861 0.25722 0.31894 1.00000
  K4 K 0.88979 0.77959 0.17906 1.00000
  Np1 Np 0.79016 0.58033 0.52525 1.00000
  Np2 Np 0.20984 0.41967 0.02525 1.00000
  In1 In 0.56000 0.11999 0.92972 1.00000
  In2 In 0.44000 0.88001 0.42972 1.00000
  Se1 Se 0.34407 0.68815 0.00524 1.00000
  Se2 Se 0.69882 0.39763 0.89203 1.00000
  Se3 Se 0.49906 0.99812 0.77694 1.00000
  Se4 Se 0.28914 0.57828 0.65057 1.00000
  Se5 Se 0.94020 0.88040 0.54623 1.00000
  Se6 Se 0.65593 0.31185 0.50524 1.00000
  Se7 Se 0.30118 0.60237 0.39203 1.00000
  Se8 Se 0.50094 0.00188 0.27694 1.00000
  Se9 Se 0.71086 0.42172 0.15057 1.00000
  Se10 Se 0.05980 0.11960 0.04623 1.00000
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