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HEAS Data Platform · Materials Science Database

Mg2NpNi9

Alexandria ALEX

Alex-ID: agm054932905 · Space group: P6_3/mmc (#194)

Alexandria Database API

Basic Information

Formula
Mg2NpNi9
Alex-ID
agm054932905
Elements
3
Sites
24
Space group
P6_3/mmc (#194)
Crystal system
hexagonal
Volume
318.99
ų
Cell a
4.8314
Å
Cell b
4.8314
Å
Cell c
15.7799
Å
α angle
90.00
°
β angle
90.00
°
γ angle
120.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Mg2NpNi9
Mg
4.00 · 16.7%
Np
2.00 · 8.3%
Ni
18.00 · 75.0%

Energy & Stability

Energy above hull
0.0015
eV/atom
Formation energy
-0.1777
eV/atom
Corrected total energy
-140.6336
eV
Raw total energy
-140.6336
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0145
eV
DOS at Fermi level
37.6932
Total magnetisation
-2.8273
μB

Additional Information

Prototype ID

AB2C9_13_spg194

Decomposition

Mg2NpNi9

Computed at

2024-10-16 05:34:21.554076

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: agm054932905).

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 agm054932905
data_agm054932905
_cell_length_a     4.83141
_cell_length_b     4.83141
_cell_length_c     15.77990
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  120.00000
_cell_volume       318.99424
_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
  Mg1 Mg 0.33333 0.66667 0.53367 1.00000
  Mg2 Mg 0.66667 0.33333 0.03367 1.00000
  Mg3 Mg 0.66667 0.33333 0.46633 1.00000
  Mg4 Mg 0.33333 0.66667 0.96633 1.00000
  Np1 Np 0.33333 0.66667 0.75000 1.00000
  Np2 Np 0.66667 0.33333 0.25000 1.00000
  Ni1 Ni 0.00000 0.00000 0.00000 1.00000
  Ni2 Ni 0.00000 0.00000 0.50000 1.00000
  Ni3 Ni 0.00000 0.00000 0.25000 1.00000
  Ni4 Ni 0.00000 0.00000 0.75000 1.00000
  Ni5 Ni 0.33333 0.66667 0.25000 1.00000
  Ni6 Ni 0.66667 0.33333 0.75000 1.00000
  Ni7 Ni 0.16762 0.33525 0.12340 1.00000
  Ni8 Ni 0.66475 0.83238 0.12340 1.00000
  Ni9 Ni 0.16762 0.83238 0.12340 1.00000
  Ni10 Ni 0.83238 0.66475 0.62340 1.00000
  Ni11 Ni 0.33525 0.16762 0.62340 1.00000
  Ni12 Ni 0.83238 0.16762 0.62340 1.00000
  Ni13 Ni 0.33525 0.16762 0.87660 1.00000
  Ni14 Ni 0.83238 0.66475 0.87660 1.00000
  Ni15 Ni 0.83238 0.16762 0.87660 1.00000
  Ni16 Ni 0.66475 0.83238 0.37660 1.00000
  Ni17 Ni 0.16762 0.33525 0.37660 1.00000
  Ni18 Ni 0.16762 0.83238 0.37660 1.00000
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