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Np2Al16Pt9

Alexandria ALEX

Alex-ID: agm008297024 · Space group: Immm (#71)

Basic Information

Formula
Np2Al16Pt9
Alex-ID
agm008297024
Elements
3
Sites
27
Space group
Immm (#71)
Crystal system
orthorhombic
Volume
455.35
ų
Cell a
11.1298
Å
Cell b
11.1298
Å
Cell c
11.1298
Å
α angle
158.48
°
β angle
114.92
°
γ angle
69.42
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np2Al16Pt9
Np
2.00 · 7.4%
Al
16.00 · 59.3%
Pt
9.00 · 33.3%

Energy & Stability

Energy above hull
0.0191
eV/atom
Formation energy
-0.8431
eV/atom
Corrected total energy
-163.3672
eV
Raw total energy
-163.3672
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0010
eV
DOS at Fermi level
24.5759
Total magnetisation
7.6911
μB

Additional Information

Prototype ID

A2B9C16_1_spg71

Decomposition

Al3Pt2 Np4(Al8Pt3)3 Np

Computed at

2024-11-01 12:56:30.326290

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: agm008297024).

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 agm008297024
data_agm008297024
_cell_length_a     11.12978
_cell_length_b     11.12978
_cell_length_c     11.12978
_cell_angle_alpha  158.47623
_cell_angle_beta   114.91716
_cell_angle_gamma  69.41645
_cell_volume       455.34699
_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 0.22804 0.72804 0.50000 1.00000
  Np2 Np 0.77196 0.27196 0.50000 1.00000
  Al1 Al 0.50985 0.89125 0.61860 1.00000
  Al2 Al 0.74881 0.42009 0.32872 1.00000
  Al3 Al 0.89464 0.70387 0.19077 1.00000
  Al4 Al 0.90863 0.57991 0.32872 1.00000
  Al5 Al 0.91185 0.91185 0.00000 1.00000
  Al6 Al 0.49015 0.10875 0.38140 1.00000
  Al7 Al 0.51310 0.70387 0.80923 1.00000
  Al8 Al 0.10536 0.29613 0.80923 1.00000
  Al9 Al 0.61307 0.50000 0.11307 1.00000
  Al10 Al 0.38693 0.50000 0.88693 1.00000
  Al11 Al 0.72735 0.10875 0.61860 1.00000
  Al12 Al 0.48690 0.29613 0.19077 1.00000
  Al13 Al 0.25119 0.57991 0.67128 1.00000
  Al14 Al 0.09137 0.42009 0.67128 1.00000
  Al15 Al 0.27265 0.89125 0.38140 1.00000
  Al16 Al 0.08815 0.08815 0.00000 1.00000
  Pt1 Pt 0.25197 0.00000 0.25197 1.00000
  Pt2 Pt 0.65485 0.83917 0.81568 1.00000
  Pt3 Pt 0.62619 0.62619 0.00000 1.00000
  Pt4 Pt 0.74803 0.00000 0.74803 1.00000
  Pt5 Pt 0.37381 0.37381 0.00000 1.00000
  Pt6 Pt 0.00000 0.50000 0.50000 1.00000
  Pt7 Pt 0.02350 0.83917 0.18432 1.00000
  Pt8 Pt 0.97650 0.16083 0.81568 1.00000
  Pt9 Pt 0.34515 0.16083 0.18432 1.00000
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