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HEAS Data Platform · Materials Science Database

La8Mg3Ta5O28

Alexandria ALEX

Alex-ID: agm017378100 · Space group: C2 (#5)

Basic Information

Formula
La8Mg3Ta5O28
Alex-ID
agm017378100
Elements
4
Sites
44
Space group
C2 (#5)
Crystal system
monoclinic
Volume
623.20
ų
Cell a
7.7767
Å
Cell b
7.7767
Å
Cell c
12.0777
Å
α angle
80.78
°
β angle
99.22
°
γ angle
119.75
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
La8Mg3Ta5O28
La
8.00 · 18.2%
Mg
3.00 · 6.8%
Ta
5.00 · 11.4%
O
28.00 · 63.6%

Energy & Stability

Energy above hull
0.0125
eV/atom
Formation energy
-3.6239
eV/atom
Corrected total energy
-401.7496
eV
Raw total energy
-382.0854
eV

Electronic Structure

Indirect band gap
0.0997
eV
Direct band gap
0.1320
eV
DOS at Fermi level
12.5956
Total magnetisation
1.3062
μB

Additional Information

Prototype ID

A3B5C8D28_0_spg5

Decomposition

LaO2 La3TaO7 LaTaO4 MgO

Computed at

2024-12-20 00:48:54

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: agm017378100).

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 agm017378100
data_agm017378100
_cell_length_a     7.77673
_cell_length_b     7.77673
_cell_length_c     12.07774
_cell_angle_alpha  80.77863
_cell_angle_beta   99.22137
_cell_angle_gamma  119.74603
_cell_volume       623.20469
_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 0.25587 0.50285 0.74258 1.00000
  La2 La 0.50285 0.25587 0.25742 1.00000
  La3 La 0.74876 0.50432 0.75201 1.00000
  La4 La 0.50432 0.74876 0.24799 1.00000
  La5 La 0.98202 0.75274 0.22606 1.00000
  La6 La 0.75274 0.98202 0.77394 1.00000
  La7 La 0.01195 0.24321 0.28767 1.00000
  La8 La 0.24321 0.01195 0.71233 1.00000
  Mg1 Mg 0.46866 0.46866 0.50000 1.00000
  Mg2 Mg 0.53534 0.53534 0.00000 1.00000
  Mg3 Mg 0.86053 0.86053 0.50000 1.00000
  Ta1 Ta 0.12745 0.62535 0.99617 1.00000
  Ta2 Ta 0.62535 0.12745 0.00383 1.00000
  Ta3 Ta 0.87132 0.37769 0.50844 1.00000
  Ta4 Ta 0.37769 0.87132 0.49156 1.00000
  Ta5 Ta 0.12971 0.12971 0.00000 1.00000
  O1 O 0.88556 0.84562 0.67589 1.00000
  O2 O 0.84562 0.88556 0.32411 1.00000
  O3 O 0.12370 0.14930 0.83495 1.00000
  O4 O 0.14930 0.12370 0.16505 1.00000
  O5 O 0.22826 0.43552 0.97859 1.00000
  O6 O 0.43552 0.22826 0.02141 1.00000
  O7 O 0.75957 0.54515 0.53066 1.00000
  O8 O 0.54515 0.75957 0.46934 1.00000
  O9 O 0.15451 0.57786 0.52390 1.00000
  O10 O 0.57786 0.15451 0.47610 1.00000
  O11 O 0.84397 0.42800 0.97760 1.00000
  O12 O 0.42800 0.84397 0.02240 1.00000
  O13 O 0.56644 0.13971 0.83900 1.00000
  O14 O 0.13971 0.56644 0.16100 1.00000
  O15 O 0.43664 0.85796 0.66011 1.00000
  O16 O 0.85796 0.43664 0.33989 1.00000
  O17 O 0.36435 0.40713 0.34339 1.00000
  O18 O 0.40713 0.36435 0.65661 1.00000
  O19 O 0.63466 0.58564 0.15642 1.00000
  O20 O 0.58564 0.63466 0.84358 1.00000
  O21 O 0.12194 0.68498 0.82960 1.00000
  O22 O 0.68498 0.12194 0.17040 1.00000
  O23 O 0.89025 0.31802 0.67671 1.00000
  O24 O 0.31802 0.89025 0.32329 1.00000
  O25 O 0.06825 0.84786 0.01687 1.00000
  O26 O 0.84786 0.06825 0.98313 1.00000
  O27 O 0.93504 0.16659 0.48579 1.00000
  O28 O 0.16659 0.93504 0.51421 1.00000
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