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HEAS Data Platform · Materials Science Database

UNi2AgH8

Alexandria ALEX

Alex-ID: agm007164635 · Space group: R-3 (#148)

Basic Information

Formula
UNi2AgH8
Alex-ID
agm007164635
Elements
4
Sites
12
Space group
R-3 (#148)
Crystal system
trigonal
Volume
99.65
ų
Cell a
6.5810
Å
Cell b
6.5810
Å
Cell c
6.5810
Å
α angle
38.59
°
β angle
38.59
°
γ angle
38.59
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
UNi2AgH8
U
1.00 · 8.3%
Ni
2.00 · 16.7%
Ag
1.00 · 8.3%
H
8.00 · 66.7%

Energy & Stability

Energy above hull
0.2294
eV/atom
Formation energy
0.0200
eV/atom
Corrected total energy
-51.3852
eV
Raw total energy
-51.3852
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0122
eV
DOS at Fermi level
8.0912
Total magnetisation
2.8977
μB

Additional Information

Prototype ID

ABC2D8_35_spg2

Decomposition

U(NiH3)2 H2 Ag

Computed at

2024-01-28 16:55:13.304907

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: agm007164635).

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 agm007164635
data_agm007164635
_cell_length_a     6.58100
_cell_length_b     6.58100
_cell_length_c     6.58100
_cell_angle_alpha  38.59077
_cell_angle_beta   38.59077
_cell_angle_gamma  38.59077
_cell_volume       99.65074
_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 0.50000 0.50000 0.50000 1.00000
  Ni1 Ni 0.74250 0.74250 0.74250 1.00000
  Ni2 Ni 0.25750 0.25750 0.25750 1.00000
  Ag1 Ag 0.00000 0.00000 0.00000 1.00000
  H1 H 0.82862 0.82862 0.82862 1.00000
  H2 H 0.39654 0.11370 0.68285 1.00000
  H3 H 0.17138 0.17138 0.17138 1.00000
  H4 H 0.11370 0.68285 0.39654 1.00000
  H5 H 0.88630 0.31715 0.60346 1.00000
  H6 H 0.68285 0.39654 0.11370 1.00000
  H7 H 0.31715 0.60346 0.88630 1.00000
  H8 H 0.60346 0.88630 0.31715 1.00000
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