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K2Er2TeSe6

Alexandria ALEX

Alex-ID: agm034126223 · Space group: C2/m (#12)

Basic Information

Formula
K2Er2TeSe6
Alex-ID
agm034126223
Elements
4
Sites
11
Space group
C2/m (#12)
Crystal system
monoclinic
Volume
348.31
ų
Cell a
7.1315
Å
Cell b
7.1315
Å
Cell c
8.2410
Å
α angle
81.78
°
β angle
98.22
°
γ angle
60.13
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Er2TeSe6
K
2.00 · 18.2%
Er
2.00 · 18.2%
Te
1.00 · 9.1%
Se
6.00 · 54.5%

Energy & Stability

Energy above hull
0.0091
eV/atom
Formation energy
-1.2691
eV/atom
Corrected total energy
-49.3754
eV
Raw total energy
-49.3754
eV

Electronic Structure

Indirect band gap
2.0142
eV
Direct band gap
2.0142
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C2D6_25_spg12

Decomposition

TeSe2 KErSe2

Computed at

2025-02-26 23:43:50

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: agm034126223).

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 agm034126223
data_agm034126223
_cell_length_a     7.13152
_cell_length_b     7.13152
_cell_length_c     8.24103
_cell_angle_alpha  81.77779
_cell_angle_beta   98.22221
_cell_angle_gamma  60.12646
_cell_volume       348.31165
_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 0.83409 0.83409 0.50000 1.00000
  K2 K 0.16591 0.16591 0.50000 1.00000
  Er1 Er 0.33301 0.33301 0.00000 1.00000
  Er2 Er 0.66699 0.66699 0.00000 1.00000
  Te1 Te 0.00000 0.00000 0.00000 1.00000
  Se1 Se 0.26359 0.73641 0.80045 1.00000
  Se2 Se 0.60477 0.06615 0.80077 1.00000
  Se3 Se 0.73641 0.26359 0.19955 1.00000
  Se4 Se 0.93385 0.39523 0.80077 1.00000
  Se5 Se 0.39523 0.93385 0.19923 1.00000
  Se6 Se 0.06615 0.60477 0.19923 1.00000
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