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Sm2NpHg3

Alexandria ALEX

Alex-ID: agm034976527 · Space group: P4/mmm (#123)

Basic Information

Formula
Sm2NpHg3
Alex-ID
agm034976527
Elements
3
Sites
6
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
161.06
ų
Cell a
3.7467
Å
Cell b
3.7467
Å
Cell c
11.4735
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sm2NpHg3
Sm
2.00 · 33.3%
Np
1.00 · 16.7%
Hg
3.00 · 50.0%

Energy & Stability

Energy above hull
0.1951
eV/atom
Formation energy
-0.1619
eV/atom
Corrected total energy
-24.4420
eV
Raw total energy
-24.4420
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
11.7741
Total magnetisation
5.4241
μB

Additional Information

Prototype ID

AB2C3_125_spg123

Decomposition

Sm3Hg4 Sm3Hg5 Np

Computed at

2025-04-15 09:37:58

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: agm034976527).

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 agm034976527
data_agm034976527
_cell_length_a     3.74670
_cell_length_b     3.74670
_cell_length_c     11.47350
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       161.06199
_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
  Sm1 Sm 0.50000 0.50000 0.83258 1.00000
  Sm2 Sm 0.50000 0.50000 0.16742 1.00000
  Np1 Np 0.50000 0.50000 0.50000 1.00000
  Hg1 Hg 0.00000 0.00000 0.00000 1.00000
  Hg2 Hg 0.00000 0.00000 0.66801 1.00000
  Hg3 Hg 0.00000 0.00000 0.33199 1.00000
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