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NpAlFe3Sn4

Alexandria ALEX

Alex-ID: agm085777739 · Space group: P6/mmm (#191)

Basic Information

Formula
NpAlFe3Sn4
Alex-ID
agm085777739
Elements
4
Sites
9
Space group
P6/mmm (#191)
Crystal system
hexagonal
Volume
184.86
ų
Cell a
5.1925
Å
Cell b
5.1925
Å
Cell c
7.9168
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpAlFe3Sn4
Np
1.00 · 11.1%
Al
1.00 · 11.1%
Fe
3.00 · 33.3%
Sn
4.00 · 44.4%

Energy & Stability

Energy above hull
0.2787
eV/atom
Formation energy
0.1275
eV/atom
Corrected total energy
-56.9379
eV
Raw total energy
-56.9379
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
8.5129
Total magnetisation
1.5705
μB

Additional Information

Prototype ID

ABC3D4_218_spg191

Decomposition

AlFe AlFe4 Sn NpSn3

Computed at

2025-02-22 23:17:51

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: agm085777739).

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 agm085777739
data_agm085777739
_cell_length_a     5.19255
_cell_length_b     5.19255
_cell_length_c     7.91679
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       184.85901
_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 0.00000 0.00000 0.50000 1.00000
  Al1 Al 0.00000 0.00000 0.00000 1.00000
  Fe1 Fe 0.00000 0.50000 0.50000 1.00000
  Fe2 Fe 0.50000 0.00000 0.50000 1.00000
  Fe3 Fe 0.50000 0.50000 0.50000 1.00000
  Sn1 Sn 0.33333 0.66667 0.79424 1.00000
  Sn2 Sn 0.66667 0.33333 0.20576 1.00000
  Sn3 Sn 0.66667 0.33333 0.79424 1.00000
  Sn4 Sn 0.33333 0.66667 0.20576 1.00000
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