Navigation

HEAS Data Platform · Materials Science Database

K7(FeS2)4

Alexandria ALEX

Alex-ID: agm008596402 · Space group: C2/c (#15)

Basic Information

Formula
K7(FeS2)4
Alex-ID
agm008596402
Elements
3
Sites
38
Space group
C2/c (#15)
Crystal system
monoclinic
Volume
984.95
ų
Cell a
9.7604
Å
Cell b
9.7604
Å
Cell c
15.7085
Å
α angle
64.63
°
β angle
64.63
°
γ angle
48.19
°

Composition

Element Composition (atomic fraction)
Composition Info
Formula
K7(FeS2)4
K
14.00 · 36.8%
Fe
8.00 · 21.1%
S
16.00 · 42.1%

Energy & Stability

Energy above hull
0.0114
eV/atom
Formation energy
-1.1395
eV/atom
Corrected total energy
-192.4733
eV
Raw total energy
-181.8580
eV

Electronic Structure

Indirect band gap
0.2821
eV
Direct band gap
0.2821
eV
DOS at Fermi level
0.0170
Total magnetisation
21.7682
μB

Additional Information

Prototype ID

A4B7C8_3_spg15

Decomposition

K3(FeS)8 K3FeS3 K9Fe2S7

Computed at

2024-09-30 11:31:20.328186

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: agm008596402).

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 agm008596402
data_agm008596402
_cell_length_a     9.76043
_cell_length_b     9.76043
_cell_length_c     15.70852
_cell_angle_alpha  64.63059
_cell_angle_beta   64.63059
_cell_angle_gamma  48.19137
_cell_volume       984.95126
_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 0.23796 0.76204 0.25000 1.00000
  K2 K 0.76204 0.23796 0.75000 1.00000
  K3 K 0.23616 0.74857 0.49008 1.00000
  K4 K 0.25143 0.76384 0.00992 1.00000
  K5 K 0.76384 0.25143 0.50992 1.00000
  K6 K 0.74857 0.23616 0.99008 1.00000
  K7 K 0.01710 0.50788 0.11102 1.00000
  K8 K 0.49212 0.98290 0.38898 1.00000
  K9 K 0.98290 0.49212 0.88898 1.00000
  K10 K 0.50788 0.01710 0.61102 1.00000
  K11 K 0.02314 0.49424 0.36227 1.00000
  K12 K 0.50576 0.97686 0.13773 1.00000
  K13 K 0.97686 0.50576 0.63773 1.00000
  K14 K 0.49424 0.02314 0.86227 1.00000
  Fe1 Fe 0.68291 0.43540 0.16071 1.00000
  Fe2 Fe 0.56460 0.31709 0.33929 1.00000
  Fe3 Fe 0.31709 0.56460 0.83929 1.00000
  Fe4 Fe 0.43540 0.68291 0.66071 1.00000
  Fe5 Fe 0.91287 0.20379 0.27814 1.00000
  Fe6 Fe 0.79621 0.08713 0.22186 1.00000
  Fe7 Fe 0.08713 0.79621 0.72186 1.00000
  Fe8 Fe 0.20379 0.91287 0.77814 1.00000
  S1 S 0.65780 0.50595 0.29026 1.00000
  S2 S 0.49405 0.34220 0.20974 1.00000
  S3 S 0.34220 0.49405 0.70974 1.00000
  S4 S 0.50595 0.65780 0.79026 1.00000
  S5 S 0.98476 0.18186 0.12279 1.00000
  S6 S 0.81814 0.01524 0.37721 1.00000
  S7 S 0.01524 0.81814 0.87721 1.00000
  S8 S 0.18186 0.98476 0.62279 1.00000
  S9 S 0.68237 0.60120 0.54209 1.00000
  S10 S 0.39880 0.31763 0.95791 1.00000
  S11 S 0.31763 0.39880 0.45791 1.00000
  S12 S 0.60120 0.68237 0.04209 1.00000
  S13 S 0.88138 0.84590 0.18198 1.00000
  S14 S 0.15410 0.11862 0.31802 1.00000
  S15 S 0.11862 0.15410 0.81802 1.00000
  S16 S 0.84590 0.88138 0.68198 1.00000
Get direct link