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K2C

Alexandria ALEX

Alex-ID: agm005472276 · Space group: Cmmm (#65)

Basic Information

Formula
K2C
Alex-ID
agm005472276
Elements
2
Sites
6
Space group
Cmmm (#65)
Crystal system
orthorhombic
Volume
205.09
ų
Cell a
8.1874
Å
Cell b
8.1874
Å
Cell c
4.2767
Å
α angle
90.00
°
β angle
90.00
°
γ angle
134.32
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2C
K
4.00 · 66.7%
C
2.00 · 33.3%

Energy & Stability

Energy above hull
1.5855
eV/atom
Formation energy
1.5699
eV/atom
Corrected total energy
-13.4374
eV
Raw total energy
-13.4374
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0043
eV
DOS at Fermi level
3.0025
Total magnetisation
4.1084
μB

Additional Information

Prototype ID

AB2_2009_spg65

Decomposition

KC8 K

Computed at

2023-03-19 07:41:53.790994

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: agm005472276).

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 agm005472276
data_agm005472276
_cell_length_a     8.18740
_cell_length_b     8.18740
_cell_length_c     4.27672
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  134.32375
_cell_volume       205.09430
_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 0.00000 0.00000 1.00000
  K2 K 0.50000 0.50000 0.50000 1.00000
  K3 K 0.76579 0.23421 0.50000 1.00000
  K4 K 0.23421 0.76579 0.50000 1.00000
  C1 C 0.63615 0.36385 0.00000 1.00000
  C2 C 0.36385 0.63615 0.00000 1.00000
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