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K2Ca

Alexandria ALEX

Alex-ID: agm005447993 · Space group: Cm (#8)

Basic Information

Formula
K2Ca
Alex-ID
agm005447993
Elements
2
Sites
6
Space group
Cm (#8)
Crystal system
monoclinic
Volume
354.15
ų
Cell a
8.4188
Å
Cell b
8.4188
Å
Cell c
10.6274
Å
α angle
73.68
°
β angle
73.68
°
γ angle
29.43
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Ca
K
4.00 · 66.7%
Ca
2.00 · 33.3%

Energy & Stability

Energy above hull
0.1402
eV/atom
Formation energy
0.1402
eV/atom
Corrected total energy
-7.5718
eV
Raw total energy
-7.5718
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0059
eV
DOS at Fermi level
5.4154
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2_4_spg12

Decomposition

Ca K

Computed at

2023-03-21 07:41:48.482198

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: agm005447993).

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 agm005447993
data_agm005447993
_cell_length_a     8.41883
_cell_length_b     8.41883
_cell_length_c     10.62740
_cell_angle_alpha  73.67648
_cell_angle_beta   73.67648
_cell_angle_gamma  29.43113
_cell_volume       354.15011
_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 0.66432 0.66432 0.66711 1.00000
  K2 K 0.61411 0.61411 0.27497 1.00000
  K3 K 0.93838 0.93838 0.60608 1.00000
  K4 K 0.27935 0.27935 0.95311 1.00000
  Ca1 Ca 0.99099 0.99099 0.02121 1.00000
  Ca2 Ca 0.34617 0.34617 0.31084 1.00000
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