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K2Ti2AlSe6

Alexandria ALEX

Alex-ID: agm004580276 · Space group: C2/m (#12)

Basic Information

Formula
K2Ti2AlSe6
Alex-ID
agm004580276
Elements
4
Sites
11
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
286.57
ų
Cell a
6.5109
Å
Cell b
6.5109
Å
Cell c
8.1671
Å
α angle
97.92
°
β angle
97.92
°
γ angle
120.51
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Ti2AlSe6
K
2.00 · 18.2%
Ti
2.00 · 18.2%
Al
1.00 · 9.1%
Se
6.00 · 54.5%

Energy & Stability

Energy above hull
0.0779
eV/atom
Formation energy
-1.1212
eV/atom
Corrected total energy
-55.0171
eV
Raw total energy
-55.0171
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1295
eV
DOS at Fermi level
4.6371
Total magnetisation
0.8178
μB

Additional Information

Prototype ID

AB2C2D6_25_spg12

Decomposition

K3(TiSe2)5 KAlSe2 K(TiSe2)4

Computed at

2022-06-23 04:42:44.824472

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: agm004580276).

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 agm004580276
data_agm004580276
_cell_length_a     6.51089
_cell_length_b     6.51089
_cell_length_c     8.16711
_cell_angle_alpha  97.91549
_cell_angle_beta   97.91549
_cell_angle_gamma  120.50746
_cell_volume       286.56817
_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 0.83445 0.16555 0.00000 1.00000
  K2 K 0.16555 0.83445 0.00000 1.00000
  Ti1 Ti 0.32841 0.67159 0.50000 1.00000
  Ti2 Ti 0.67159 0.32841 0.50000 1.00000
  Al1 Al 0.00000 0.00000 0.50000 1.00000
  Se1 Se 0.73243 0.73243 0.67962 1.00000
  Se2 Se 0.06801 0.39613 0.68682 1.00000
  Se3 Se 0.26757 0.26757 0.32038 1.00000
  Se4 Se 0.39613 0.06801 0.68682 1.00000
  Se5 Se 0.93199 0.60387 0.31318 1.00000
  Se6 Se 0.60387 0.93199 0.31318 1.00000
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