Navigation

HEAS Data Platform · Materials Science Database

NpAl3Ge2

Alexandria ALEX

Alex-ID: agm033100745 · Space group: P6/mmm (#191)

Basic Information

Formula
NpAl3Ge2
Alex-ID
agm033100745
Elements
3
Sites
6
Space group
P6/mmm (#191)
Crystal system
hexagonal
Volume
114.03
ų
Cell a
5.5172
Å
Cell b
5.5172
Å
Cell c
4.3257
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpAl3Ge2
Np
1.00 · 16.7%
Al
3.00 · 50.0%
Ge
2.00 · 33.3%

Energy & Stability

Energy above hull
0.1774
eV/atom
Formation energy
0.0243
eV/atom
Corrected total energy
-33.2662
eV
Raw total energy
-33.2662
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0018
eV
DOS at Fermi level
10.4586
Total magnetisation
-4.3634
μB

Additional Information

Prototype ID

AB2C3_1_spg191

Decomposition

NpAlGe2 Al

Computed at

2024-09-14 10:29:24.456378

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: agm033100745).

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 agm033100745
data_agm033100745
_cell_length_a     5.51718
_cell_length_b     5.51718
_cell_length_c     4.32574
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       114.03165
_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 0.00000 1.00000
  Al1 Al 0.50000 0.50000 0.50000 1.00000
  Al2 Al 0.50000 0.00000 0.50000 1.00000
  Al3 Al 0.00000 0.50000 0.50000 1.00000
  Ge1 Ge 0.66667 0.33333 0.00000 1.00000
  Ge2 Ge 0.33333 0.66667 0.00000 1.00000
Get direct link