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Ho8Ta5Co3O28

Alexandria ALEX

Alex-ID: agm017472446 · Space group: C2 (#5)

Basic Information

Formula
Ho8Ta5Co3O28
Alex-ID
agm017472446
Elements
4
Sites
44
Space group
C2 (#5)
Crystal system
monoclinic
Volume
555.59
ų
Cell a
7.5251
Å
Cell b
7.5251
Å
Cell c
11.5288
Å
α angle
80.47
°
β angle
99.53
°
γ angle
119.89
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
Ho8Ta5Co3O28
Ho
8.00 · 18.2%
Ta
5.00 · 11.4%
Co
3.00 · 6.8%
O
28.00 · 63.6%

Energy & Stability

Energy above hull
0.0149
eV/atom
Formation energy
-3.4265
eV/atom
Corrected total energy
-406.8565
eV
Raw total energy
-381.5704
eV

Electronic Structure

Indirect band gap
0.7277
eV
Direct band gap
0.7277
eV
DOS at Fermi level
-0.1807
Total magnetisation
-2.0051
μB

Additional Information

Prototype ID

A3B5C8D28_0_spg5

Decomposition

Ho3TaO7 HoTaO4 Co3O4 CoO

Computed at

2024-12-20 00:48:00

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: agm017472446).

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 agm017472446
data_agm017472446
_cell_length_a     7.52509
_cell_length_b     7.52509
_cell_length_c     11.52883
_cell_angle_alpha  80.47500
_cell_angle_beta   99.52500
_cell_angle_gamma  119.88546
_cell_volume       555.58841
_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
  Ho1 Ho 0.50558 0.25991 0.25926 1.00000
  Ho2 Ho 0.25991 0.50558 0.74074 1.00000
  Ho3 Ho 0.50890 0.74725 0.25370 1.00000
  Ho4 Ho 0.74725 0.50890 0.74630 1.00000
  Ho5 Ho 0.75070 0.98266 0.77381 1.00000
  Ho6 Ho 0.98266 0.75070 0.22619 1.00000
  Ho7 Ho 0.23938 0.01176 0.70978 1.00000
  Ho8 Ho 0.01176 0.23938 0.29022 1.00000
  Ta1 Ta 0.63003 0.13146 0.00420 1.00000
  Ta2 Ta 0.13146 0.63003 0.99580 1.00000
  Ta3 Ta 0.36614 0.87143 0.49072 1.00000
  Ta4 Ta 0.87143 0.36614 0.50928 1.00000
  Ta5 Ta 0.13072 0.13072 0.00000 1.00000
  Co1 Co 0.46469 0.46469 0.50000 1.00000
  Co2 Co 0.54775 0.54775 0.00000 1.00000
  Co3 Co 0.86301 0.86301 0.50000 1.00000
  O1 O 0.85269 0.87763 0.33085 1.00000
  O2 O 0.87763 0.85269 0.66915 1.00000
  O3 O 0.13909 0.12453 0.17136 1.00000
  O4 O 0.12453 0.13909 0.82864 1.00000
  O5 O 0.43769 0.22748 0.03568 1.00000
  O6 O 0.22748 0.43769 0.96432 1.00000
  O7 O 0.55405 0.76882 0.46078 1.00000
  O8 O 0.76882 0.55405 0.53922 1.00000
  O9 O 0.56987 0.16588 0.46613 1.00000
  O10 O 0.16588 0.56987 0.53387 1.00000
  O11 O 0.42861 0.83500 0.03394 1.00000
  O12 O 0.83500 0.42861 0.96606 1.00000
  O13 O 0.12753 0.54489 0.16447 1.00000
  O14 O 0.54489 0.12753 0.83553 1.00000
  O15 O 0.86516 0.44709 0.33588 1.00000
  O16 O 0.44709 0.86516 0.66412 1.00000
  O17 O 0.40839 0.36252 0.66287 1.00000
  O18 O 0.36252 0.40839 0.33713 1.00000
  O19 O 0.59078 0.63987 0.83728 1.00000
  O20 O 0.63987 0.59078 0.16272 1.00000
  O21 O 0.69458 0.12002 0.18119 1.00000
  O22 O 0.12002 0.69458 0.81881 1.00000
  O23 O 0.31166 0.88777 0.31233 1.00000
  O24 O 0.88777 0.31166 0.68767 1.00000
  O25 O 0.83767 0.05629 0.97385 1.00000
  O26 O 0.05629 0.83767 0.02615 1.00000
  O27 O 0.16174 0.94053 0.51830 1.00000
  O28 O 0.94053 0.16174 0.48170 1.00000
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