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KGeTe2

Alexandria ALEX

Alex-ID: agm005720007 · Space group: C2/c (#15)

Basic Information

Formula
KGeTe2
Alex-ID
agm005720007
Elements
3
Sites
32
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
1,196.65
ų
Cell a
8.3238
Å
Cell b
8.3238
Å
Cell c
17.8630
Å
α angle
79.78
°
β angle
79.78
°
γ angle
84.97
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
KGeTe2
K
8.00 · 25.0%
Ge
8.00 · 25.0%
Te
16.00 · 50.0%

Energy & Stability

Energy above hull
0.0407
eV/atom
Formation energy
-0.4636
eV/atom
Corrected total energy
-110.8583
eV
Raw total energy
-110.8582
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.1783
eV
DOS at Fermi level
5.0774
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2_9216_spg15

Decomposition

K2Te5 K3GeTe3 GeTe

Computed at

2023-07-14 17:14:54.837494

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: agm005720007).

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 agm005720007
data_agm005720007
_cell_length_a     8.32380
_cell_length_b     8.32380
_cell_length_c     17.86304
_cell_angle_alpha  79.77710
_cell_angle_beta   79.77710
_cell_angle_gamma  84.96896
_cell_volume       1196.65014
_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 0.61209 0.79663 0.86981 1.00000
  K2 K 0.20337 0.38791 0.63019 1.00000
  K3 K 0.38791 0.20337 0.13019 1.00000
  K4 K 0.79663 0.61209 0.36981 1.00000
  K5 K 0.20431 0.88118 0.60006 1.00000
  K6 K 0.11882 0.79569 0.89994 1.00000
  K7 K 0.79569 0.11882 0.39994 1.00000
  K8 K 0.88118 0.20431 0.10006 1.00000
  Ge1 Ge 0.47753 0.25967 0.82825 1.00000
  Ge2 Ge 0.74033 0.52247 0.67175 1.00000
  Ge3 Ge 0.52247 0.74033 0.17175 1.00000
  Ge4 Ge 0.25967 0.47753 0.32825 1.00000
  Ge5 Ge 0.65873 0.08655 0.64842 1.00000
  Ge6 Ge 0.91345 0.34127 0.85158 1.00000
  Ge7 Ge 0.34127 0.91345 0.35158 1.00000
  Ge8 Ge 0.08655 0.65873 0.14842 1.00000
  Te1 Te 0.64729 0.36391 0.95275 1.00000
  Te2 Te 0.63609 0.35271 0.54725 1.00000
  Te3 Te 0.35271 0.63609 0.04725 1.00000
  Te4 Te 0.36391 0.64729 0.45275 1.00000
  Te5 Te 0.37212 0.04712 0.73620 1.00000
  Te6 Te 0.95288 0.62788 0.76380 1.00000
  Te7 Te 0.62788 0.95288 0.26380 1.00000
  Te8 Te 0.04712 0.37212 0.23620 1.00000
  Te9 Te 0.77108 0.83179 0.57906 1.00000
  Te10 Te 0.16821 0.22892 0.92094 1.00000
  Te11 Te 0.22892 0.16821 0.42094 1.00000
  Te12 Te 0.83179 0.77108 0.07906 1.00000
  Te13 Te 0.85917 0.14083 0.75000 1.00000
  Te14 Te 0.14083 0.85917 0.25000 1.00000
  Te15 Te 0.43436 0.56564 0.75000 1.00000
  Te16 Te 0.56564 0.43436 0.25000 1.00000
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