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Sr4Ta2O9

Alexandria ALEX

Alex-ID: agm003239482 · Space group: P6_3/m (#176)

Basic Information

Formula
Sr4Ta2O9
Alex-ID
agm003239482
Elements
3
Sites
30
Space group
P6_3/m (#176)
Crystal system
hexagonal
Volume
484.31
ų
Cell a
5.9379
Å
Cell b
5.9384
Å
Cell c
15.8595
Å
α angle
89.99
°
β angle
89.99
°
γ angle
60.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Sr4Ta2O9
Sr
8.00 · 26.7%
Ta
4.00 · 13.3%
O
18.00 · 60.0%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-3.4323
eV/atom
Corrected total energy
-253.1426
eV
Raw total energy
-240.5014
eV

Electronic Structure

Indirect band gap
4.2672
eV
Direct band gap
4.3288
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A2B4C9_2_spg2

Decomposition

Sr4Ta2O9

Computed at

2021-12-24 01:45:13.697006

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: agm003239482).

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 agm003239482
data_agm003239482
_cell_length_a     5.93788
_cell_length_b     5.93838
_cell_length_c     15.85953
_cell_angle_alpha  89.99265
_cell_angle_beta   89.99209
_cell_angle_gamma  60.00028
_cell_volume       484.30763
_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
  Sr1 Sr 0.00008 0.99977 0.25015 1.00000
  Sr2 Sr 0.00000 0.00000 0.50000 1.00000
  Sr3 Sr 0.00000 0.00000 0.00000 1.00000
  Sr4 Sr 0.66664 0.66694 0.36217 1.00000
  Sr5 Sr 0.66687 0.66587 0.13793 1.00000
  Sr6 Sr 0.33313 0.33413 0.86207 1.00000
  Sr7 Sr 0.33336 0.33306 0.63783 1.00000
  Sr8 Sr 0.99992 0.00023 0.74985 1.00000
  Ta1 Ta 0.66627 0.66740 0.84541 1.00000
  Ta2 Ta 0.66676 0.66649 0.65457 1.00000
  Ta3 Ta 0.33324 0.33351 0.34543 1.00000
  Ta4 Ta 0.33373 0.33260 0.15459 1.00000
  O1 O 0.59350 0.95969 0.74978 1.00000
  O2 O 0.91970 0.72801 0.60224 1.00000
  O3 O 0.91941 0.72968 0.89723 1.00000
  O4 O 0.35180 0.91928 0.60241 1.00000
  O5 O 0.35141 0.92075 0.89744 1.00000
  O6 O 0.95921 0.44723 0.75000 1.00000
  O7 O 0.44690 0.59386 0.75009 1.00000
  O8 O 0.27205 0.64683 0.10210 1.00000
  O9 O 0.27125 0.64877 0.39732 1.00000
  O10 O 0.72875 0.35123 0.60268 1.00000
  O11 O 0.72795 0.35317 0.89790 1.00000
  O12 O 0.55310 0.40614 0.24991 1.00000
  O13 O 0.04079 0.55277 0.25000 1.00000
  O14 O 0.64859 0.07925 0.10256 1.00000
  O15 O 0.64820 0.08072 0.39759 1.00000
  O16 O 0.08059 0.27032 0.10277 1.00000
  O17 O 0.08030 0.27199 0.39776 1.00000
  O18 O 0.40650 0.04031 0.25022 1.00000
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