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Np2Al16Ni9

Alexandria ALEX

Alex-ID: agm008296980 · Space group: Immm (#71)

Basic Information

Formula
Np2Al16Ni9
Alex-ID
agm008296980
Elements
3
Sites
27
Space group
Immm (#71)
Crystal system
orthorhombic
Volume
398.07
ų
Cell a
10.6580
Å
Cell b
10.6580
Å
Cell c
10.6580
Å
α angle
158.29
°
β angle
116.44
°
γ angle
68.01
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np2Al16Ni9
Np
2.00 · 7.4%
Al
16.00 · 59.3%
Ni
9.00 · 33.3%

Energy & Stability

Energy above hull
0.0509
eV/atom
Formation energy
-0.4791
eV/atom
Corrected total energy
-150.8000
eV
Raw total energy
-150.8000
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0008
eV
DOS at Fermi level
26.7061
Total magnetisation
7.6203
μB

Additional Information

Prototype ID

A2B9C16_1_spg71

Decomposition

Al3Ni2 NpAl2 Np

Computed at

2025-02-22 16:43:52

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: agm008296980).

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 agm008296980
data_agm008296980
_cell_length_a     10.65803
_cell_length_b     10.65803
_cell_length_c     10.65803
_cell_angle_alpha  158.29417
_cell_angle_beta   116.44482
_cell_angle_gamma  68.01088
_cell_volume       398.07151
_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 0.27195 0.27195 0.00000 1.00000
  Np2 Np 0.72805 0.72805 0.00000 1.00000
  Al1 Al 0.98374 0.10542 0.87832 1.00000
  Al2 Al 0.75203 0.58118 0.17085 1.00000
  Al3 Al 0.60148 0.29451 0.30697 1.00000
  Al4 Al 0.58967 0.41882 0.17085 1.00000
  Al5 Al 0.58423 0.08423 0.50000 1.00000
  Al6 Al 0.01626 0.89458 0.12168 1.00000
  Al7 Al 0.98754 0.29451 0.69303 1.00000
  Al8 Al 0.39852 0.70549 0.69303 1.00000
  Al9 Al 0.88303 0.50000 0.38303 1.00000
  Al10 Al 0.11697 0.50000 0.61697 1.00000
  Al11 Al 0.77290 0.89458 0.87832 1.00000
  Al12 Al 0.01246 0.70549 0.30697 1.00000
  Al13 Al 0.24797 0.41882 0.82915 1.00000
  Al14 Al 0.41033 0.58118 0.82915 1.00000
  Al15 Al 0.22710 0.10542 0.12168 1.00000
  Al16 Al 0.41577 0.91577 0.50000 1.00000
  Ni1 Ni 0.27157 0.00000 0.27157 1.00000
  Ni2 Ni 0.84367 0.15964 0.68403 1.00000
  Ni3 Ni 0.87622 0.37622 0.50000 1.00000
  Ni4 Ni 0.72843 1.00000 0.72843 1.00000
  Ni5 Ni 0.12378 0.62378 0.50000 1.00000
  Ni6 Ni 0.50000 0.50000 0.00000 1.00000
  Ni7 Ni 0.47561 0.15964 0.31597 1.00000
  Ni8 Ni 0.52439 0.84036 0.68403 1.00000
  Ni9 Ni 0.15633 0.84036 0.31597 1.00000
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