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U2Nb3Si4

Alexandria ALEX

Alex-ID: agm005246791 · Space group: P4_12_12 (#92)

Basic Information

Formula
U2Nb3Si4
Alex-ID
agm005246791
Elements
3
Sites
36
Space group
P4_12_12 (#92)
Crystal system
tetragonal
Volume
644.36
ų
Cell a
7.0471
Å
Cell b
7.0471
Å
Cell c
12.9750
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
U2Nb3Si4
U
8.00 · 22.2%
Nb
12.00 · 33.3%
Si
16.00 · 44.4%

Energy & Stability

Energy above hull
0.0007
eV/atom
Formation energy
-0.5713
eV/atom
Corrected total energy
-318.4775
eV
Raw total energy
-318.4775
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
53.3723
Total magnetisation
17.1761
μB

Additional Information

Prototype ID

A2B3C4_98_spg92

Decomposition

U2Nb3Si4

Computed at

2022-12-13 06:49:12.871161

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: agm005246791).

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 agm005246791
data_agm005246791
_cell_length_a     7.04711
_cell_length_b     7.04711
_cell_length_c     12.97503
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       644.36221
_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
  U1 U 0.99503 0.33219 0.21895 1.00000
  U2 U 0.00497 0.66781 0.71895 1.00000
  U3 U 0.16781 0.49503 0.46895 1.00000
  U4 U 0.50497 0.83219 0.03105 1.00000
  U5 U 0.83219 0.50497 0.96895 1.00000
  U6 U 0.49503 0.16781 0.53105 1.00000
  U7 U 0.33219 0.99503 0.78105 1.00000
  U8 U 0.66781 0.00497 0.28105 1.00000
  Nb1 Nb 0.16853 0.16853 0.00000 1.00000
  Nb2 Nb 0.83147 0.83147 0.50000 1.00000
  Nb3 Nb 0.33147 0.66853 0.25000 1.00000
  Nb4 Nb 0.66853 0.33147 0.75000 1.00000
  Nb5 Nb 0.15613 0.99930 0.37453 1.00000
  Nb6 Nb 0.84387 0.00070 0.87453 1.00000
  Nb7 Nb 0.50070 0.65613 0.62453 1.00000
  Nb8 Nb 0.34387 0.49930 0.87547 1.00000
  Nb9 Nb 0.49930 0.34387 0.12453 1.00000
  Nb10 Nb 0.65613 0.50070 0.37547 1.00000
  Nb11 Nb 0.99930 0.15613 0.62547 1.00000
  Nb12 Nb 0.00070 0.84387 0.12547 1.00000
  Si1 Si 0.29652 0.04043 0.18450 1.00000
  Si2 Si 0.70348 0.95957 0.68450 1.00000
  Si3 Si 0.45957 0.79652 0.43450 1.00000
  Si4 Si 0.20348 0.54043 0.06550 1.00000
  Si5 Si 0.54043 0.20348 0.93450 1.00000
  Si6 Si 0.79652 0.45957 0.56550 1.00000
  Si7 Si 0.04043 0.29652 0.81550 1.00000
  Si8 Si 0.95957 0.70348 0.31550 1.00000
  Si9 Si 0.37085 0.29272 0.31637 1.00000
  Si10 Si 0.62915 0.70728 0.81637 1.00000
  Si11 Si 0.20728 0.87085 0.56637 1.00000
  Si12 Si 0.12915 0.79272 0.93363 1.00000
  Si13 Si 0.79272 0.12915 0.06637 1.00000
  Si14 Si 0.87085 0.20728 0.43363 1.00000
  Si15 Si 0.29272 0.37085 0.68363 1.00000
  Si16 Si 0.70728 0.62915 0.18363 1.00000
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