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Np2Al12Zn7

Alexandria ALEX

Alex-ID: agm005674167 · Space group: P-3 (#147)

Basic Information

Formula
Np2Al12Zn7
Alex-ID
agm005674167
Elements
3
Sites
21
Space group
P-3 (#147)
Crystal system
trigonal
Volume
370.55
ų
Cell a
4.0680
Å
Cell b
10.2557
Å
Cell c
10.2558
Å
α angle
120.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Np2Al12Zn7
Np
2.00 · 9.5%
Al
12.00 · 57.1%
Zn
7.00 · 33.3%

Energy & Stability

Energy above hull
0.1027
eV/atom
Formation energy
0.0200
eV/atom
Corrected total energy
-79.3549
eV
Raw total energy
-79.3549
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
25.3653
Total magnetisation
8.6924
μB

Additional Information

Prototype ID

A2B7C12_5_spg147

Decomposition

Al6Zn NpAl3 Al3Zn4

Computed at

2023-06-21 05:40:38.680270

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: agm005674167).

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 agm005674167
data_agm005674167
_cell_length_a     4.06797
_cell_length_b     10.25574
_cell_length_c     10.25580
_cell_angle_alpha  119.99995
_cell_angle_beta   89.99997
_cell_angle_gamma  90.00006
_cell_volume       370.54842
_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 0.25088 0.33333 0.66667 1.00000
  Np2 Np 0.74912 0.66667 0.33333 1.00000
  Al1 Al 0.24937 0.61506 0.04703 1.00000
  Al2 Al 0.24937 0.43197 0.38494 1.00000
  Al3 Al 0.24937 0.95297 0.56803 1.00000
  Al4 Al 0.75063 0.38494 0.95297 1.00000
  Al5 Al 0.75063 0.56803 0.61506 1.00000
  Al6 Al 0.75063 0.04703 0.43197 1.00000
  Al7 Al 0.23750 0.11328 0.26330 1.00000
  Al8 Al 0.23750 0.15002 0.88672 1.00000
  Al9 Al 0.23750 0.73669 0.84997 1.00000
  Al10 Al 0.76250 0.88672 0.73670 1.00000
  Al11 Al 0.76250 0.84998 0.11328 1.00000
  Al12 Al 0.76250 0.26331 0.15003 1.00000
  Zn1 Zn 0.50000 0.00000 0.00000 1.00000
  Zn2 Zn 0.25509 0.87161 0.29059 1.00000
  Zn3 Zn 0.25509 0.41898 0.12839 1.00000
  Zn4 Zn 0.25509 0.70941 0.58102 1.00000
  Zn5 Zn 0.74491 0.12839 0.70941 1.00000
  Zn6 Zn 0.74491 0.58102 0.87161 1.00000
  Zn7 Zn 0.74491 0.29059 0.41898 1.00000
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