Navigation

HEAS Data Platform · Materials Science Database

K3CoO2

Alexandria ALEX

Alex-ID: agm005673010 · Space group: P2_1/c (#14)

Basic Information

Formula
K3CoO2
Alex-ID
agm005673010
Elements
3
Sites
24
Space group
P2_1/c (#14)
Crystal system
monoclinic
Volume
528.15
ų
Cell a
6.4739
Å
Cell b
9.5267
Å
Cell c
9.1015
Å
α angle
90.00
°
β angle
109.80
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K3CoO2
K
12.00 · 50.0%
Co
4.00 · 16.7%
O
8.00 · 33.3%

Energy & Stability

Energy above hull
0.0044
eV/atom
Formation energy
-1.2863
eV/atom
Corrected total energy
-112.2583
eV
Raw total energy
-99.1440
eV

Electronic Structure

Indirect band gap
1.5529
eV
Direct band gap
1.5529
eV
DOS at Fermi level
-0.0002
Total magnetisation
8.0000
μB

Additional Information

Prototype ID

AB2C3_87_spg14

Decomposition

K3CoO2

Computed at

2023-08-29 18:36:17.642410

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: agm005673010).

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 agm005673010
data_agm005673010
_cell_length_a     6.47388
_cell_length_b     9.52670
_cell_length_c     9.10152
_cell_angle_alpha  90.00000
_cell_angle_beta   109.80030
_cell_angle_gamma  90.00000
_cell_volume       528.14728
_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 0.25874 0.96465 0.00341 1.00000
  K2 K 0.24126 0.46465 0.49659 1.00000
  K3 K 0.74126 0.03535 0.99659 1.00000
  K4 K 0.75874 0.53535 0.50341 1.00000
  K5 K 0.36597 0.53117 0.12647 1.00000
  K6 K 0.13403 0.03117 0.37353 1.00000
  K7 K 0.63403 0.46883 0.87353 1.00000
  K8 K 0.86597 0.96883 0.62647 1.00000
  K9 K 0.93013 0.70900 0.18752 1.00000
  K10 K 0.56987 0.20900 0.31248 1.00000
  K11 K 0.06987 0.29100 0.81248 1.00000
  K12 K 0.43013 0.79100 0.68752 1.00000
  Co1 Co 0.53504 0.82190 0.32749 1.00000
  Co2 Co 0.96496 0.32190 0.17251 1.00000
  Co3 Co 0.46496 0.17810 0.67251 1.00000
  Co4 Co 0.03504 0.67810 0.82749 1.00000
  O1 O 0.70769 0.94250 0.27442 1.00000
  O2 O 0.79231 0.44250 0.22558 1.00000
  O3 O 0.29231 0.05750 0.72558 1.00000
  O4 O 0.20769 0.55750 0.77442 1.00000
  O5 O 0.37254 0.69563 0.38267 1.00000
  O6 O 0.12746 0.19563 0.11733 1.00000
  O7 O 0.62746 0.30437 0.61733 1.00000
  O8 O 0.87254 0.80437 0.88267 1.00000
Get direct link