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K4SrNb6(Ge2O13)2

Alexandria ALEX

Alex-ID: agm011029082 · Space group: P1 (#1)

Basic Information

Formula
K4SrNb6(Ge2O13)2
Alex-ID
agm011029082
Elements
5
Sites
41
Space group
P1 (#1)
Crystal system
triclinic
Volume
611.37
ų
Cell a
8.1107
Å
Cell b
9.2945
Å
Cell c
9.3026
Å
α angle
119.33
°
β angle
90.05
°
γ angle
89.89
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K4SrNb6(Ge2O13)2
K
4.00 · 9.8%
Sr
1.00 · 2.4%
Nb
6.00 · 14.6%
Ge
4.00 · 9.8%
O
26.00 · 63.4%

Energy & Stability

Energy above hull
0.0385
eV/atom
Formation energy
-2.7109
eV/atom
Corrected total energy
-325.0465
eV
Raw total energy
-306.7870
eV

Electronic Structure

Indirect band gap
3.0131
eV
Direct band gap
3.0306
eV
DOS at Fermi level
0.0000
Total magnetisation
-0.0007
μB

Additional Information

Prototype ID

AB4C4D6E26_0_spg38

Decomposition

KNbGeO5 SrNb2O6

Computed at

2025-02-18 04:32:01

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: agm011029082).

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 agm011029082
data_agm011029082
_cell_length_a     8.11068
_cell_length_b     9.29455
_cell_length_c     9.30255
_cell_angle_alpha  119.33090
_cell_angle_beta   90.05308
_cell_angle_gamma  89.88552
_cell_volume       611.37301
_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 0.99551 0.00432 0.39380 1.00000
  K2 K 0.49836 0.00118 0.40323 1.00000
  K3 K 0.49490 0.39980 0.99912 1.00000
  K4 K 0.99562 0.39282 0.00380 1.00000
  Sr1 Sr 0.49995 0.65751 0.65713 1.00000
  Nb1 Nb 0.27397 0.77208 0.00713 1.00000
  Nb2 Nb 0.77952 0.76247 0.99919 1.00000
  Nb3 Nb 0.73030 0.00604 0.77059 1.00000
  Nb4 Nb 0.22406 0.00179 0.76443 1.00000
  Nb5 Nb 0.72198 0.22765 0.22857 1.00000
  Nb6 Nb 0.22550 0.23655 0.23627 1.00000
  Ge1 Ge 0.22029 0.33864 0.66503 1.00000
  Ge2 Ge 0.78566 0.34101 0.66465 1.00000
  Ge3 Ge 0.21856 0.66398 0.34055 1.00000
  Ge4 Ge 0.78333 0.66359 0.33707 1.00000
  O1 O 0.76812 0.82760 0.82427 1.00000
  O2 O 0.50049 0.19984 0.20099 1.00000
  O3 O 0.30076 0.52363 0.81960 1.00000
  O4 O 0.70084 0.53141 0.80388 1.00000
  O5 O 0.29218 0.30397 0.47367 1.00000
  O6 O 0.71707 0.27887 0.46600 1.00000
  O7 O 0.00257 0.33337 0.67709 1.00000
  O8 O 0.22598 0.99912 0.17612 1.00000
  O9 O 0.77896 0.99232 0.16755 1.00000
  O10 O 0.71868 0.18757 0.70972 1.00000
  O11 O 0.28548 0.17058 0.69025 1.00000
  O12 O 0.50057 0.78639 0.99494 1.00000
  O13 O 0.00184 0.71731 0.99500 1.00000
  O14 O 0.77516 0.17541 0.99981 1.00000
  O15 O 0.00201 0.99717 0.71798 1.00000
  O16 O 0.50362 0.99387 0.78492 1.00000
  O17 O 0.72067 0.68251 0.16470 1.00000
  O18 O 0.28531 0.70485 0.18394 1.00000
  O19 O 0.30089 0.80827 0.53025 1.00000
  O20 O 0.70528 0.82395 0.52012 1.00000
  O21 O 0.00138 0.67287 0.33104 1.00000
  O22 O 0.23654 0.82725 0.82882 1.00000
  O23 O 0.29211 0.46745 0.28574 1.00000
  O24 O 0.71046 0.47512 0.30952 1.00000
  O25 O 0.22182 0.17062 0.99459 1.00000
  O26 O 0.00368 0.26925 0.26898 1.00000
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