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Sm15NpO24

Alexandria ALEX

Alex-ID: agm017562452 · Space group: C2 (#5)

Basic Information

Formula
Sm15NpO24
Alex-ID
agm017562452
Elements
3
Sites
40
Space group
C2 (#5)
Crystal system
monoclinic
Volume
665.07
ų
Cell a
9.5231
Å
Cell b
9.5231
Å
Cell c
10.9900
Å
α angle
54.77
°
β angle
125.23
°
γ angle
109.45
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm15NpO24
Sm
15.00 · 37.5%
Np
1.00 · 2.5%
O
24.00 · 60.0%

Energy & Stability

Energy above hull
0.0132
eV/atom
Formation energy
-3.8106
eV/atom
Corrected total energy
-355.2161
eV
Raw total energy
-338.3611
eV

Electronic Structure

Indirect band gap
0.2242
eV
Direct band gap
0.2254
eV
DOS at Fermi level
8.7484
Total magnetisation
3.9973
μB

Additional Information

Prototype ID

AB15C24_6_spg5

Decomposition

Np7O12 Sm2O3 Np

Computed at

2025-02-27 21:16:49

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: agm017562452).

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 agm017562452
data_agm017562452
_cell_length_a     9.52315
_cell_length_b     9.52315
_cell_length_c     10.99003
_cell_angle_alpha  54.77259
_cell_angle_beta   125.22741
_cell_angle_gamma  109.45295
_cell_volume       665.06564
_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
  Sm1 Sm 0.96912 0.96912 0.50000 1.00000
  Sm2 Sm 0.50088 0.00055 0.24960 1.00000
  Sm3 Sm 0.78116 0.72055 0.78070 1.00000
  Sm4 Sm 0.72055 0.78116 0.21930 1.00000
  Sm5 Sm 0.74942 0.25158 0.96828 1.00000
  Sm6 Sm 0.75002 0.24835 0.47041 1.00000
  Sm7 Sm 0.00055 0.50088 0.75040 1.00000
  Sm8 Sm 0.49992 0.00065 0.74813 1.00000
  Sm9 Sm 0.00065 0.49992 0.25187 1.00000
  Sm10 Sm 0.53154 0.53154 0.00000 1.00000
  Sm11 Sm 0.46924 0.46924 0.50000 1.00000
  Sm12 Sm 0.24835 0.75002 0.52959 1.00000
  Sm13 Sm 0.25158 0.74942 0.03172 1.00000
  Sm14 Sm 0.28109 0.21916 0.28032 1.00000
  Sm15 Sm 0.21916 0.28109 0.71968 1.00000
  Np1 Np 0.02763 0.02763 0.00000 1.00000
  O1 O 0.76015 0.46080 0.02107 1.00000
  O2 O 0.74097 0.04143 0.22039 1.00000
  O3 O 0.26941 0.02849 0.98013 1.00000
  O4 O 0.97062 0.72824 0.48174 1.00000
  O5 O 0.77113 0.52784 0.26333 1.00000
  O6 O 0.47140 0.22851 0.76252 1.00000
  O7 O 0.46080 0.76015 0.97893 1.00000
  O8 O 0.04143 0.74097 0.77961 1.00000
  O9 O 0.01219 0.23024 0.49156 1.00000
  O10 O 0.77037 0.99010 0.98859 1.00000
  O11 O 0.73063 0.51299 0.70924 1.00000
  O12 O 0.48925 0.26969 0.20955 1.00000
  O13 O 0.23024 0.01219 0.50844 1.00000
  O14 O 0.26969 0.48925 0.79045 1.00000
  O15 O 0.99010 0.77037 0.01141 1.00000
  O16 O 0.51299 0.73063 0.29076 1.00000
  O17 O 0.53994 0.24199 0.51994 1.00000
  O18 O 0.96069 0.25820 0.72411 1.00000
  O19 O 0.52784 0.77113 0.73667 1.00000
  O20 O 0.22851 0.47140 0.23748 1.00000
  O21 O 0.02849 0.26941 0.01987 1.00000
  O22 O 0.72824 0.97062 0.51826 1.00000
  O23 O 0.24199 0.53994 0.48006 1.00000
  O24 O 0.25820 0.96069 0.27589 1.00000
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