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Rb2TaO5

Alexandria ALEX

Alex-ID: agm003476868 · Space group: P4/mmm (#123)

Alexandria Database API

Basic Information

Formula
Rb2TaO5
Alex-ID
agm003476868
Elements
3
Sites
8
Space group
P4/mmm (#123)
Crystal system
tetragonal
Volume
175.11
ų
Cell a
4.0511
Å
Cell b
6.5746
Å
Cell c
6.5746
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Rb2TaO5
Rb
2.00 · 25.0%
Ta
1.00 · 12.5%
O
5.00 · 62.5%

Energy & Stability

Energy above hull
0.4127
eV/atom
Formation energy
-1.9978
eV/atom
Corrected total energy
-54.5609
eV
Raw total energy
-51.0494
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0270
eV
DOS at Fermi level
6.7802
Total magnetisation
3.0001
μB

Additional Information

Prototype ID

AB2C5_409_spg123

Decomposition

Rb3TaO4 Rb8Ta6O19 RbO4

Computed at

2022-02-22 13:48:20.338432

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: agm003476868).

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 agm003476868
data_agm003476868
_cell_length_a     4.05106
_cell_length_b     6.57462
_cell_length_c     6.57462
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       175.10945
_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
  Rb1 Rb 0.50000 0.50000 0.00000 1.00000
  Rb2 Rb 0.50000 0.00000 0.50000 1.00000
  Ta1 Ta 0.00000 0.00000 0.00000 1.00000
  O1 O 0.00000 0.78913 0.78913 1.00000
  O2 O 0.00000 0.21087 0.78913 1.00000
  O3 O 0.00000 0.78913 0.21087 1.00000
  O4 O 0.50000 0.00000 0.00000 1.00000
  O5 O 0.00000 0.21087 0.21087 1.00000
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