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K3Rb3Mg4Ge3Se13

Alexandria ALEX

Alex-ID: agm010644473 · Space group: R3m (#160)

Alexandria Database API

Basic Information

Formula
K3Rb3Mg4Ge3Se13
Alex-ID
agm010644473
Elements
5
Sites
26
Space group
R3m (#160)
Crystal system
trigonal
Volume
976.78
ų
Cell a
9.9518
Å
Cell b
9.9518
Å
Cell c
9.9518
Å
α angle
94.31
°
β angle
94.31
°
γ angle
94.31
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K3Rb3Mg4Ge3Se13
K
3.00 · 11.5%
Rb
3.00 · 11.5%
Mg
4.00 · 15.4%
Ge
3.00 · 11.5%
Se
13.00 · 50.0%

Energy & Stability

Energy above hull
0.0420
eV/atom
Formation energy
-0.9607
eV/atom
Corrected total energy
-96.7968
eV
Raw total energy
-96.7968
eV

Electronic Structure

Indirect band gap
1.6489
eV
Direct band gap
1.8038
eV
DOS at Fermi level
0.0000
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

A3B3C3D4E13_0_spg160

Decomposition

K2MgGeSe4 Rb2MgGeSe4 MgSe

Computed at

2024-07-21 21:28:20.937893

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: agm010644473).

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 agm010644473
data_agm010644473
_cell_length_a     9.95179
_cell_length_b     9.95179
_cell_length_c     9.95179
_cell_angle_alpha  94.31381
_cell_angle_beta   94.31381
_cell_angle_gamma  94.31381
_cell_volume       976.78303
_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 0.92670 0.48156 0.48156 1.00000
  K2 K 0.48156 0.92670 0.48156 1.00000
  K3 K 0.48156 0.48156 0.92670 1.00000
  Rb1 Rb 0.69254 0.15354 0.15354 1.00000
  Rb2 Rb 0.15354 0.69254 0.15354 1.00000
  Rb3 Rb 0.15354 0.15354 0.69254 1.00000
  Mg1 Mg 0.66138 0.66138 0.66138 1.00000
  Mg2 Mg 0.76353 0.76353 0.06262 1.00000
  Mg3 Mg 0.06262 0.76353 0.76353 1.00000
  Mg4 Mg 0.76353 0.06262 0.76353 1.00000
  Ge1 Ge 0.88336 0.88336 0.41897 1.00000
  Ge2 Ge 0.41897 0.88336 0.88336 1.00000
  Ge3 Ge 0.88336 0.41897 0.88336 1.00000
  Se1 Se 0.70381 0.70381 0.40970 1.00000
  Se2 Se 0.40970 0.70381 0.70381 1.00000
  Se3 Se 0.70381 0.40970 0.70381 1.00000
  Se4 Se 0.82052 0.82052 0.82052 1.00000
  Se5 Se 0.81071 0.09400 0.51333 1.00000
  Se6 Se 0.51333 0.81071 0.09400 1.00000
  Se7 Se 0.09400 0.51333 0.81071 1.00000
  Se8 Se 0.51333 0.09400 0.81071 1.00000
  Se9 Se 0.81071 0.51333 0.09400 1.00000
  Se10 Se 0.09400 0.81071 0.51333 1.00000
  Se11 Se 0.93517 0.93517 0.19967 1.00000
  Se12 Se 0.19967 0.93517 0.93517 1.00000
  Se13 Se 0.93517 0.19967 0.93517 1.00000
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