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KLa2CoO5

Alexandria ALEX

Alex-ID: agm005146038 · Space group: P4/mbm (#127)

Alexandria Database API

Basic Information

Formula
KLa2CoO5
Alex-ID
agm005146038
Elements
4
Sites
18
Space group
P4/mbm (#127)
Crystal system
tetragonal
Volume
274.17
ų
Cell a
5.7290
Å
Cell b
6.9178
Å
Cell c
6.9178
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KLa2CoO5
K
2.00 · 11.1%
La
4.00 · 22.2%
Co
2.00 · 11.1%
O
10.00 · 55.6%

Energy & Stability

Energy above hull
0.0410
eV/atom
Formation energy
-2.8055
eV/atom
Corrected total energy
-136.2425
eV
Raw total energy
-125.4716
eV

Electronic Structure

Indirect band gap
1.4796
eV
Direct band gap
1.5745
eV
DOS at Fermi level
0.0000
Total magnetisation
4.0833
μB

Additional Information

Prototype ID

ABC2D5_244_spg127

Decomposition

KCoO2 La2O3

Computed at

2023-01-17 12:28:04.831956

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: agm005146038).

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 agm005146038
data_agm005146038
_cell_length_a     5.72898
_cell_length_b     6.91785
_cell_length_c     6.91785
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       274.16988
_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 0.00000 0.50000 0.50000 1.00000
  K2 K 0.00000 0.00000 0.00000 1.00000
  La1 La 0.50000 0.68115 0.18115 1.00000
  La2 La 0.50000 0.18115 0.31885 1.00000
  La3 La 0.50000 0.81885 0.68115 1.00000
  La4 La 0.50000 0.31885 0.81885 1.00000
  Co1 Co 0.00000 0.00000 0.50000 1.00000
  Co2 Co 0.00000 0.50000 0.00000 1.00000
  O1 O 0.50000 0.50000 0.50000 1.00000
  O2 O 0.50000 0.00000 0.00000 1.00000
  O3 O 0.23478 0.12864 0.62864 1.00000
  O4 O 0.23478 0.87136 0.37136 1.00000
  O5 O 0.23478 0.37136 0.12864 1.00000
  O6 O 0.23478 0.62864 0.87136 1.00000
  O7 O 0.76522 0.12864 0.62864 1.00000
  O8 O 0.76522 0.62864 0.87136 1.00000
  O9 O 0.76522 0.87136 0.37136 1.00000
  O10 O 0.76522 0.37136 0.12864 1.00000
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