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K2NbAgS2

Alexandria ALEX

Alex-ID: agm005228732 · Space group: Fddd (#70)

Basic Information

Formula
K2NbAgS2
Alex-ID
agm005228732
Elements
4
Sites
24
Space group
Fddd (#70)
Crystal system
orthorhombic
Volume
781.92
ų
Cell a
9.4204
Å
Cell b
6.0381
Å
Cell c
22.4698
Å
α angle
80.59
°
β angle
77.90
°
γ angle
38.73
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K2NbAgS2
K
8.00 · 33.3%
Nb
4.00 · 16.7%
Ag
4.00 · 16.7%
S
8.00 · 33.3%

Energy & Stability

Energy above hull
0.5946
eV/atom
Formation energy
-0.5065
eV/atom
Corrected total energy
-105.6773
eV
Raw total energy
-100.3696
eV

Electronic Structure

Indirect band gap
0.0000
eV
Direct band gap
0.0224
eV
DOS at Fermi level
13.4986
Total magnetisation
0.0000
μB

Additional Information

Prototype ID

ABC2D2_969_spg70

Decomposition

Nb14S5 K2S K2(NbS2)3 Ag

Computed at

2024-10-08 20:53:06

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: agm005228732).

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 agm005228732
data_agm005228732
_cell_length_a     9.42040
_cell_length_b     6.03809
_cell_length_c     22.46983
_cell_angle_alpha  80.58854
_cell_angle_beta   77.89972
_cell_angle_gamma  38.73200
_cell_volume       781.91979
_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 0.88145 0.03442 0.60570 1.00000
  K2 K 0.51285 0.96558 0.60570 1.00000
  K3 K 0.08413 0.03442 0.39430 1.00000
  K4 K 0.86855 0.46558 0.89430 1.00000
  K5 K 0.52157 0.96558 0.39430 1.00000
  K6 K 0.23715 0.53442 0.89430 1.00000
  K7 K 0.66587 0.46558 0.10570 1.00000
  K8 K 0.22843 0.53442 0.10570 1.00000
  Nb1 Nb 0.87500 0.25000 0.25000 1.00000
  Nb2 Nb 0.87500 0.75000 0.25000 1.00000
  Nb3 Nb 0.87500 0.25000 0.75000 1.00000
  Nb4 Nb 0.37500 0.75000 0.75000 1.00000
  Ag1 Ag 0.37500 0.25000 0.25000 1.00000
  Ag2 Ag 0.37500 0.75000 0.25000 1.00000
  Ag3 Ag 0.37500 0.25000 0.75000 1.00000
  Ag4 Ag 0.87500 0.75000 0.75000 1.00000
  S1 S 0.15207 0.13588 0.17155 1.00000
  S2 S 0.67638 0.86412 0.17155 1.00000
  S3 S 0.71205 0.13588 0.82845 1.00000
  S4 S 0.59793 0.36412 0.32845 1.00000
  S5 S 0.45950 0.86412 0.82845 1.00000
  S6 S 0.07362 0.63588 0.32845 1.00000
  S7 S 0.03795 0.36412 0.67155 1.00000
  S8 S 0.29050 0.63588 0.67155 1.00000
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