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TaH4

Alexandria ALEX

Alex-ID: agm090402545 · Space group: P1 (#1)

Basic Information

Formula
TaH4
Alex-ID
agm090402545
Elements
2
Sites
30
Space group
P1 (#1)
Crystal system
triclinic
Volume
203.60
ų
Cell a
6.8546
Å
Cell b
6.4542
Å
Cell c
6.4938
Å
α angle
91.81
°
β angle
118.55
°
γ angle
120.21
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
TaH4
Ta
6.00 · 20.0%
H
24.00 · 80.0%

Energy & Stability

Energy above hull
0.0691
eV/atom
Formation energy
-0.0620
eV/atom
Corrected total energy
-150.7301
eV
Raw total energy
-150.7301
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1901
eV
DOS at Fermi level
3.1767
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB4_2611_spg1

Decomposition

TaH5 TaH2

Computed at

2025-05-28 19:51:06

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: agm090402545).

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 agm090402545
data_agm090402545
_cell_length_a     6.85465
_cell_length_b     6.45416
_cell_length_c     6.49376
_cell_angle_alpha  91.80702
_cell_angle_beta   118.54645
_cell_angle_gamma  120.21352
_cell_volume       203.60057
_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
  Ta1 Ta 0.95797 0.00409 0.73521 1.00000
  Ta2 Ta 0.47203 0.45617 0.70419 1.00000
  Ta3 Ta 0.50132 0.12486 0.33869 1.00000
  Ta4 Ta 0.00116 0.53491 0.87513 1.00000
  Ta5 Ta 0.49670 0.99171 0.84988 1.00000
  Ta6 Ta 0.97872 0.88530 0.24781 1.00000
  H1 H 0.80477 0.04807 0.13018 1.00000
  H2 H 0.07943 0.16902 0.52186 1.00000
  H3 H 0.92590 0.58845 0.30165 1.00000
  H4 H 0.80404 0.78233 0.42641 1.00000
  H5 H 0.36329 0.10707 0.54951 1.00000
  H6 H 0.09022 0.70851 0.45526 1.00000
  H7 H 0.88289 0.39098 0.54506 1.00000
  H8 H 0.36165 0.19262 0.86795 1.00000
  H9 H 0.81231 0.15607 0.82957 1.00000
  H10 H 0.73362 0.37347 0.94840 1.00000
  H11 H 0.32552 0.64554 0.67824 1.00000
  H12 H 0.25537 0.44587 0.40266 1.00000
  H13 H 0.38977 0.81193 0.05484 1.00000
  H14 H 0.69248 0.97965 0.43926 1.00000
  H15 H 0.56170 0.39882 0.26512 1.00000
  H16 H 0.67180 0.21265 0.16508 1.00000
  H17 H 0.20052 0.51385 0.16211 1.00000
  H18 H 0.17441 0.37042 0.87346 1.00000
  H19 H 0.59589 0.71552 0.57188 1.00000
  H20 H 0.64195 0.44477 0.55649 1.00000
  H21 H 0.60643 0.61486 0.03477 1.00000
  H22 H 0.08823 0.79809 0.73927 1.00000
  H23 H 0.17660 0.11218 0.11532 1.00000
  H24 H 0.16266 0.77778 0.19354 1.00000
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