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La(TaH4)2

Alexandria ALEX

Alex-ID: agm006409484 · Space group: Immm (#71)

Basic Information

Formula
La(TaH4)2
Alex-ID
agm006409484
Elements
3
Sites
11
Space group
Immm (#71)
Crystal system
orthorhombic
Volume
87.43
ų
Cell a
6.1668
Å
Cell b
6.1668
Å
Cell c
6.1668
Å
α angle
146.23
°
β angle
137.51
°
γ angle
55.34
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La(TaH4)2
La
1.00 · 9.1%
Ta
2.00 · 18.2%
H
8.00 · 72.7%

Energy & Stability

Energy above hull
0.2462
eV/atom
Formation energy
-0.1158
eV/atom
Corrected total energy
-55.8241
eV
Raw total energy
-55.8241
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
2.9778
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C8_143_spg2

Decomposition

TaH5 LaH3 TaH2

Computed at

2024-08-14 08:33:03.194897

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: agm006409484).

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 agm006409484
data_agm006409484
_cell_length_a     6.16682
_cell_length_b     6.16682
_cell_length_c     6.16682
_cell_angle_alpha  146.23469
_cell_angle_beta   137.51082
_cell_angle_gamma  55.33856
_cell_volume       87.42703
_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
  La1 La 0.50000 0.00000 0.50000 1.00000
  Ta1 Ta 0.83248 0.33248 0.50000 1.00000
  Ta2 Ta 0.16752 0.66752 0.50000 1.00000
  H1 H 0.04204 0.81863 0.22341 1.00000
  H2 H 0.40478 0.18137 0.22341 1.00000
  H3 H 0.35292 0.35292 0.00000 1.00000
  H4 H 0.81510 0.50000 0.31510 1.00000
  H5 H 0.64708 0.64708 0.00000 1.00000
  H6 H 0.59522 0.81863 0.77659 1.00000
  H7 H 0.95796 0.18137 0.77659 1.00000
  H8 H 0.18490 0.50000 0.68490 1.00000
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