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K2Na3GeAs3

Alexandria ALEX

Alex-ID: agm034007932 · Space group: Pnma (#62)

Basic Information

Formula
K2Na3GeAs3
Alex-ID
agm034007932
Elements
4
Sites
36
Space group
Pnma (#62)
Crystal system
orthorhombic
Volume
1,034.97
ų
Cell a
4.9326
Å
Cell b
13.7121
Å
Cell c
15.3021
Å
α angle
90.00
°
β angle
90.00
°
γ angle
90.00
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2Na3GeAs3
K
8.00 · 22.2%
Na
12.00 · 33.3%
Ge
4.00 · 11.1%
As
12.00 · 33.3%

Energy & Stability

Energy above hull
0.0000
eV/atom
Formation energy
-0.4210
eV/atom
Corrected total energy
-114.0659
eV
Raw total energy
-114.0659
eV

Electronic Structure

Indirect band gap
0.6515
eV
Direct band gap
0.6885
eV
DOS at Fermi level
-1.1109
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

AB2C3D3_25_spg62

Decomposition

K2Na3GeAs3

Computed at

2024-11-08 00:34:57.559485

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: agm034007932).

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 agm034007932
data_agm034007932
_cell_length_a     4.93258
_cell_length_b     13.71209
_cell_length_c     15.30208
_cell_angle_alpha  90.00000
_cell_angle_beta   90.00000
_cell_angle_gamma  90.00000
_cell_volume       1034.97236
_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 0.25000 0.44338 0.29608 1.00000
  K2 K 0.75000 0.55662 0.70392 1.00000
  K3 K 0.75000 0.94338 0.20392 1.00000
  K4 K 0.25000 0.05662 0.79608 1.00000
  K5 K 0.25000 0.63699 0.51097 1.00000
  K6 K 0.75000 0.36301 0.48903 1.00000
  K7 K 0.75000 0.13699 0.98903 1.00000
  K8 K 0.25000 0.86301 0.01097 1.00000
  Na1 Na 0.25000 0.92832 0.55947 1.00000
  Na2 Na 0.75000 0.07168 0.44053 1.00000
  Na3 Na 0.75000 0.42832 0.94053 1.00000
  Na4 Na 0.25000 0.57168 0.05947 1.00000
  Na5 Na 0.25000 0.31913 0.08384 1.00000
  Na6 Na 0.75000 0.68087 0.91616 1.00000
  Na7 Na 0.75000 0.81913 0.41616 1.00000
  Na8 Na 0.25000 0.18087 0.58384 1.00000
  Na9 Na 0.25000 0.73437 0.25814 1.00000
  Na10 Na 0.75000 0.26563 0.74186 1.00000
  Na11 Na 0.75000 0.23437 0.24186 1.00000
  Na12 Na 0.25000 0.76563 0.75814 1.00000
  Ge1 Ge 0.25000 0.08680 0.29732 1.00000
  Ge2 Ge 0.75000 0.91320 0.70268 1.00000
  Ge3 Ge 0.75000 0.58680 0.20268 1.00000
  Ge4 Ge 0.25000 0.41320 0.79732 1.00000
  As1 As 0.25000 0.10697 0.14234 1.00000
  As2 As 0.75000 0.89303 0.85766 1.00000
  As3 As 0.75000 0.60697 0.35766 1.00000
  As4 As 0.25000 0.39303 0.64234 1.00000
  As5 As 0.25000 0.92790 0.36293 1.00000
  As6 As 0.75000 0.07210 0.63707 1.00000
  As7 As 0.75000 0.42790 0.13707 1.00000
  As8 As 0.25000 0.57210 0.86293 1.00000
  As9 As 0.25000 0.22435 0.39126 1.00000
  As10 As 0.75000 0.77565 0.60874 1.00000
  As11 As 0.75000 0.72435 0.10874 1.00000
  As12 As 0.25000 0.27565 0.89126 1.00000
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