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NpGa3Cu

Alexandria ALEX

Alex-ID: agm003716079 · Space group: Pnma (#62)

Alexandria Database API

Basic Information

Formula
NpGa3Cu
Alex-ID
agm003716079
Elements
3
Sites
20
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
336.45
ų
Cell a
3.6611
Å
Cell b
8.0632
Å
Cell c
11.3973
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
NpGa3Cu
Np
4.00 · 20.0%
Ga
12.00 · 60.0%
Cu
4.00 · 20.0%

Energy & Stability

Energy above hull
0.0763
eV/atom
Formation energy
-0.0922
eV/atom
Corrected total energy
-106.5990
eV
Raw total energy
-106.5990
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0281
eV
DOS at Fermi level
17.0023
Total magnetisation
0.0055
μB

Additional Information

Prototype ID

ABC3_4907_spg62

Decomposition

Np4Ga12Cu Cu

Computed at

2022-04-15 19:13:25.630822

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: agm003716079).

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 agm003716079
data_agm003716079
_cell_length_a     3.66110
_cell_length_b     8.06320
_cell_length_c     11.39735
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       336.45140
_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 0.75000 0.90176 0.99847 1.00000
  Np2 Np 0.25000 0.59824 0.49847 1.00000
  Np3 Np 0.75000 0.40176 0.50153 1.00000
  Np4 Np 0.25000 0.09824 0.00153 1.00000
  Ga1 Ga 0.25000 0.58996 0.08284 1.00000
  Ga2 Ga 0.75000 0.41004 0.91716 1.00000
  Ga3 Ga 0.25000 0.08996 0.41716 1.00000
  Ga4 Ga 0.75000 0.91004 0.58284 1.00000
  Ga5 Ga 0.25000 0.38818 0.72242 1.00000
  Ga6 Ga 0.75000 0.11182 0.22242 1.00000
  Ga7 Ga 0.25000 0.88818 0.77758 1.00000
  Ga8 Ga 0.75000 0.63788 0.71724 1.00000
  Ga9 Ga 0.25000 0.36212 0.28276 1.00000
  Ga10 Ga 0.75000 0.13788 0.78276 1.00000
  Ga11 Ga 0.75000 0.61182 0.27758 1.00000
  Ga12 Ga 0.25000 0.86212 0.21724 1.00000
  Cu1 Cu 0.25000 0.11843 0.62848 1.00000
  Cu2 Cu 0.25000 0.61843 0.87152 1.00000
  Cu3 Cu 0.75000 0.38157 0.12848 1.00000
  Cu4 Cu 0.75000 0.88157 0.37152 1.00000
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