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Ho4NpSi4

Alexandria ALEX

Alex-ID: agm012886503 · Space group: P2_12_12_1 (#19)

Basic Information

Formula
Ho4NpSi4
Alex-ID
agm012886503
Elements
3
Sites
36
Space group
P2_12_12_1 (#19)
Crystal system
orthorhombic
Volume
820.92
ų
Cell a
7.3431
Å
Cell b
7.6833
Å
Cell c
14.5504
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho4NpSi4
Ho
16.00 · 44.4%
Np
4.00 · 11.1%
Si
16.00 · 44.4%

Energy & Stability

Energy above hull
0.1566
eV/atom
Formation energy
-0.5798
eV/atom
Corrected total energy
-232.6621
eV
Raw total energy
-232.6621
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0024
eV
DOS at Fermi level
63.9271
Total magnetisation
22.3567
μB

Additional Information

Prototype ID

AB4C4_63_spg19

Decomposition

Np HoSi

Computed at

2025-03-02 04:25:29

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: agm012886503).

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 agm012886503
data_agm012886503
_cell_length_a     7.34310
_cell_length_b     7.68331
_cell_length_c     14.55040
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       820.92444
_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
  Ho1 Ho 0.40084 0.98232 0.49973 1.00000
  Ho2 Ho 0.90084 0.51768 0.50027 1.00000
  Ho3 Ho 0.09916 0.01768 0.99973 1.00000
  Ho4 Ho 0.59916 0.48232 0.00027 1.00000
  Ho5 Ho 0.43340 0.82286 0.12861 1.00000
  Ho6 Ho 0.93340 0.67714 0.87139 1.00000
  Ho7 Ho 0.06660 0.17714 0.62861 1.00000
  Ho8 Ho 0.56660 0.32286 0.37139 1.00000
  Ho9 Ho 0.06897 0.18062 0.37295 1.00000
  Ho10 Ho 0.56897 0.31938 0.62705 1.00000
  Ho11 Ho 0.43103 0.81938 0.87295 1.00000
  Ho12 Ho 0.93103 0.68062 0.12705 1.00000
  Ho13 Ho 0.77421 0.18133 0.84602 1.00000
  Ho14 Ho 0.27421 0.31867 0.15398 1.00000
  Ho15 Ho 0.72579 0.81867 0.34602 1.00000
  Ho16 Ho 0.22579 0.68133 0.65398 1.00000
  Np1 Np 0.72332 0.81703 0.65152 1.00000
  Np2 Np 0.22332 0.68297 0.34848 1.00000
  Np3 Np 0.77668 0.18297 0.15152 1.00000
  Np4 Np 0.27668 0.31703 0.84848 1.00000
  Si1 Si 0.60263 0.52807 0.20937 1.00000
  Si2 Si 0.10263 0.97193 0.79063 1.00000
  Si3 Si 0.89737 0.47193 0.70937 1.00000
  Si4 Si 0.39737 0.02807 0.29063 1.00000
  Si5 Si 0.90045 0.47410 0.28897 1.00000
  Si6 Si 0.40045 0.02590 0.71103 1.00000
  Si7 Si 0.59955 0.52590 0.78897 1.00000
  Si8 Si 0.09955 0.97410 0.21103 1.00000
  Si9 Si 0.51583 0.62434 0.50073 1.00000
  Si10 Si 0.01583 0.87566 0.49927 1.00000
  Si11 Si 0.98417 0.37566 0.00073 1.00000
  Si12 Si 0.48417 0.12434 0.99927 1.00000
  Si13 Si 0.77310 0.10327 0.49981 1.00000
  Si14 Si 0.27310 0.39673 0.50019 1.00000
  Si15 Si 0.72690 0.89673 0.99981 1.00000
  Si16 Si 0.22690 0.60327 0.00019 1.00000
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