Navigation

HEAS Data Platform · Materials Science Database

KTb(AlH2)4

Alexandria ALEX

Alex-ID: agm006941385 · Space group: R3m (#160)

Basic Information

Formula
KTb(AlH2)4
Alex-ID
agm006941385
Elements
4
Sites
14
Space group
R3m (#160)
Crystal system
trigonal
Volume
202.94
ų
Cell a
6.1905
Å
Cell b
6.1905
Å
Cell c
6.1905
Å
α angle
70.12
°
β angle
70.12
°
γ angle
70.12
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KTb(AlH2)4
K
1.00 · 7.1%
Tb
1.00 · 7.1%
Al
4.00 · 28.6%
H
8.00 · 57.1%

Energy & Stability

Energy above hull
0.3772
eV/atom
Formation energy
0.0372
eV/atom
Corrected total energy
-46.1135
eV
Raw total energy
-46.1135
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0000
eV
DOS at Fermi level
5.8712
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC4D8_121_spg160

Decomposition

KAlH4 TbH3 Al AlH3

Computed at

2024-01-28 10:13:30.133741

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: agm006941385).

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 agm006941385
data_agm006941385
_cell_length_a     6.19048
_cell_length_b     6.19048
_cell_length_c     6.19048
_cell_angle_alpha  70.12097
_cell_angle_beta   70.12097
_cell_angle_gamma  70.12097
_cell_volume       202.93570
_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
  K1 K 0.61709 0.61709 0.61709 1.00000
  Tb1 Tb 0.06916 0.06916 0.06916 1.00000
  Al1 Al 0.33511 0.33511 0.33511 1.00000
  Al2 Al 0.99576 0.99576 0.58750 1.00000
  Al3 Al 0.58750 0.99576 0.99576 1.00000
  Al4 Al 0.99576 0.58750 0.99576 1.00000
  H1 H 0.81880 0.81880 0.16548 1.00000
  H2 H 0.16548 0.81880 0.81880 1.00000
  H3 H 0.81880 0.16548 0.81880 1.00000
  H4 H 0.80303 0.80303 0.80303 1.00000
  H5 H 0.22518 0.22518 0.62408 1.00000
  H6 H 0.62408 0.22518 0.22518 1.00000
  H7 H 0.22518 0.62408 0.22518 1.00000
  H8 H 0.21767 0.21767 0.21767 1.00000
Get direct link